| **Pension and Other Postretirement Benefits**         | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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| **Compensation and Retirement Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  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| PENSION AND OTHER POSTRETIREMENT BENEFITS             | PENSION AND OTHER POSTRETIREMENT BENEFITSDefined Contribution PlansWe sponsor numerous defined contribution savings plans, which allow our eligible employees to contribute a portion of their pre-tax and/or after-tax income in accordance with specified guidelines. Several of the plans require us to match a percentage of the employee contributions up to certain limits and make base contributions, generally totaling between 2.0% to 7.5% of employee eligible pay. Matching contributions and base contributions charged to expense were $82 million, $58 million and $55 million for fiscal 2016, 2015 and 2014, respectively.Deferred Compensation PlanWe also sponsor a supplemental executive retirement plan, which is a nonqualified deferred compensation arrangement for highly compensated employees (within the meaning of section 201(2) of ERISA). The plan obligations are funded by investments held in a Rabbi Trust.The following table provides the fair value our deferred compensation plan investments and liabilities by category and by fair value hierarchy level as of July 1, 2016: Level 1 Level 2 Level 3 Total        Assets       Deferred compensation plan investments: (1)       Corporate-owned life insurance$— $23 $— $23Stock fund44 — — 44Equity security38 — — 38Liabilities       Deferred compensation plans (2)44 72 — 116(1)Represents investments held in a Rabbi Trust associated with our non-qualified deferred compensation plans, which we include in the “Deferred compensation plan investments” and “Other non-current assets” line items in our Consolidated Balance Sheet.(2)Primarily represents obligations to pay benefits under certain non-qualified deferred compensation plans, which we include in the “Deferred compensation plan liabilities” and “Other long-term liabilities” line items in our Consolidated Balance Sheet. Under these plans, participants designate investment options (including money market, stock and fixed-income funds), which serve as the basis for measurement of the notional value of their accounts.Defined Benefit PlansSome of our employees participate in numerous defined benefit pension plans and benefits for most participants under the terms of these plans are based on the employee’s years of service and compensation. We fund these plans as required by statutory regulations and through discretionary contributions. Some of our employees also participate in other postretirement defined benefit plans such as health care and life insurance plans.The U.S. Salaried Retirement Plan (“U.S. SRP”) is our largest defined benefit pension plan, with assets valued at $3.8 billion and a projected benefit obligation of $5.9 billion as of July 1, 2016. Effective December 31, 2016, future benefit accruals under the U.S. SRP will be frozen.Balance Sheet InformationAmounts recognized in our Consolidated Balance Sheet for defined benefit pension plans and other postretirement defined benefit plans (collectively, “defined benefit plans”) reflect the funded status of our plans. The following table provides a summary of the funded status of our defined benefit plans and the presentation of such balances within our Consolidated Balance Sheet: July 1, 2016 July 3, 2015 Pension OtherBenefits Total Pension OtherBenefits Total             (In millions) (In millions)Fair value of plan assets$4,273 $216 $4,489 $4,500 $257 $4,757Projected benefit obligation(6,471) (311) (6,782) (6,493) (445) (6,938)Funded status(2,198) (95) (2,293) (1,993) (188) (2,181)Amounts reported within:           Other non-current assets5 — 5 7 — 7Deferred compensation plan liabilities(2) — (2) (245) — (245)Defined benefit plans$(2,201) $(95) $(2,296) $(1,755) $(188) $(1,943)A portion of our projected benefit obligation includes amounts that have not yet been recognized as expense (or reductions of expense) in our results of operations. Such amounts are recorded within accumulated other comprehensive loss until they are amortized as a component of net periodic benefit cost. The following table provides a summary of pre-tax amounts recorded within accumulated other comprehensive loss: July 1, 2016 July 3, 2015 Pension OtherBenefits Total Pension OtherBenefits Total             (In millions) (In millions)Net actuarial loss (gain)$546 $11 $557 $(98) $(2) $(100)Net prior service cost (credit)3 (1) 2 — (6) (6) $549 $10 $559 $(98) $(8) $(106)The following table provides a roll-forward of the projected benefit obligations for our defined benefit plans:  2016 2015  Pension OtherBenefits Total Pension OtherBenefits Total               (In millions) (In millions)Change in benefit obligation           Benefit obligation at beginning of fiscal year$6,493 $445 $6,938 $83 $21 $104Liabilities assumed through acquisition— — — 6,619 460 7,079Service cost75 1 76 7 1 8Interest cost245 13 258 23 2 25Actuarial loss (gain)303 (2) 301 (201) (13) (214)Prior service cost (credit)(1)3 (121) (118) — (19) (19)Benefits paid(358) (24) (382) (32) (4) (36)Settlements(2)(244) — (244) — — —Special termination benefits1 — 1 — — —Expenses paid(30) — (30) — — —Curtailments(3)(2) (1) (3) — — —Foreign Exchange(15) — (15) (6) — (6)Other— — — — (3) (3)Benefit obligation at end of fiscal year$6,471 $311 $6,782 $6,493 $445 $6,938             (1)  We discontinued certain significantly underfunded post-employment benefit plans effective December 31, 2015. Under GAAP, this resulted in a negative plan amendment, curtailment and settlement during the year.(2)  We made lump sum distributions to participants covered under one of the Exelis Inc. excess pension plans that became payable within 90 days from the close of the acquisition on May 29, 2015. These distributions resulted in a settlement during the quarter ended October 2, 2015 and a net liability reduction of $244 million.(3)  We discontinued operations at one of our facilities during fiscal 2016, with the facility consolidation completing during the quarter ended July 1, 2016. Under GAAP, this resulted in a curtailment during the quarter ended January 1, 2016, and a net pension liability reduction of $2 million. Additionally, see note (1) above for information about the other benefits curtailment.   The following table provides a roll-forward of the assets and the ending funded status of our defined benefit plans:  2016 2015  Pension OtherBenefits Total Pension OtherBenefits Total               (In millions) (In millions)Change in plan assets           Plan assets at beginning of fiscal year$4,500 $257 $4,757 $91 $— $91Assets acquired through acquisition— — — 4,499 269 4,768Actual return on plan assets1 (1) — (52) (4) (56)Employer contributions420 1 421 1 — 1Benefits paid(358) (25) (383) (32) (8) (40)Settlements(244) — (244) — — —Expenses paid(30) — (30) — — —Foreign exchange loss(16) — (16) (7) — (7)Other(1)— (16) (16) — — —Plan assets at end of fiscal year$4,273 $216 $4,489 $4,500 $257 $4,757            Funded status at end of fiscal year$(2,198) $(95) $(2,293) $(1,993) $(188) $(2,181)             (1)  We discontinued certain significantly underfunded post-employment benefit plans effective December 31, 2015. As a result, the remaining assets of the Employee Benefit Trust were designated for other employee benefit costs. The accumulated benefit obligation for all defined benefit pension plans was $6.5 billion at July 1, 2016. The following table provides information for defined benefit pension plans with an accumulated benefit obligation in excess of plan assets: July 1, 2016 July 3, 2015 (In millions) (In millions)Projected benefit obligation$6,390 $6,407Accumulated benefit obligation6,379 6,387Fair value of plan assets4,187 4,407Income Statement InformationThe following table provides the components of net periodic benefit cost and other amounts recognized in other comprehensive income for fiscal 2016 and 2015, as they pertain to our defined benefit plans:  2016 2015  Pension OtherBenefits Total Pension OtherBenefits Total               (In millions) (In millions)Net periodic benefit income           Service cost$75 $1 $76 $7 $1 $8Interest cost245 13 258 23 2 25Expected return on plan assets(347) (18) (365) (32) (2) (34)Amortization of prior service credit— (5) (5) — (13) (13)Amortization of net actuarial loss1 1 2 1 6 7Net periodic benefit income(26) (8) (34) (1) (6) (7)Effect of curtailments, settlements or special termination benefits(1)1 (121) (120) — — —Total net periodic benefit income(25) (129) (154) (1) (6) (7)Other changes in plan assets and benefit obligations recognized in other comprehensive loss (income)           Net actuarial loss (gain)645 15 660 (117) (5) (122)Prior service cost (credit)(1)3 (121) (118) — (19) (19)Amortization of prior service credit(1)— 126 126 — 13 13Amortization of net actuarial loss(1) (2) (3) (1) (6) (7)Total change recognized in other comprehensive loss (income) 647 18 665 (118) (17) (135)Total impact from net periodic benefit cost and changes in other comprehensive loss (income)$622 $(111) $511 $(119) $(23) $(142)             (1)  We discontinued certain significantly underfunded post-employment benefit plans effective December 31, 2015. Under GAAP, this resulted in a negative plan amendment, curtailment and settlement during the year.The following table provides the estimated net actuarial loss and prior service cost that will be amortized from accumulated other comprehensive loss into net periodic cost during fiscal 2017: Pension OtherBenefits Total       (In millions)Net actuarial loss$1 $— $1Prior service cost— — — $1 $— $1Defined Benefit Plan AssumptionsThe determination of the assumptions related to defined benefit plans are based on the provisions of the applicable accounting pronouncements, review of various market data and discussion with our actuaries. Management develops each assumption using relevant company experience in conjunction with market-related data. Assumptions are reviewed annually and adjusted as appropriate.For fiscal 2017, we will be changing the approach used to determine the service and interest components of net periodic benefit cost of the U.S. defined benefit plans. The new estimation approach discounts the individual expected cash flows underlying the service cost and interest cost by applying the applicable spot rates derived from the yield curve used to discount the cash flows in determining the benefit obligation. Historically, the service and interest cost components were determined by a single weighted-average discount rate derived from the yield curve used to measure the benefit obligation at the beginning of the period. We are making this change to provide a more precise measurement of service and interest costs by improving the correlation between projected benefit cash flows and the corresponding spot yield curve rates. We have accounted for this change as a change in accounting estimate and accordingly have accounted for it prospectively. Although the benefit obligation measured under this approach is unchanged, the more granular application of the spot rates is expected to reduce the fiscal 2017 service and interest costs for the U.S. defined benefit plans by approximately $46 million.In tandem with our decision to use the alternative spot rate approach to estimate service cost and interest cost for fiscal 2017 expense, we decided to change, as of July 1, 2016, the underlying yield curve from a published median yield curve to our actuaries’ above median yield curve to improve our ability to make such estimates. We believe we will be better able to explain changes of individual spot rates between periods with details from our actuaries supporting the underlying yield curve. If we had continued to use a median yield curve, our projected benefit obligation would have been approximately $339 million, or 5 percent higher as of July 1, 2016.The following table provides the weighted-average assumptions used to determine projected benefit obligations and net periodic benefit cost, as they pertain to our defined benefit pension plans:Obligation assumptions as of:July 1, 2016 July 3, 2015Discount rate3.62% 4.06%Rate of future compensation increase2.75% 2.76%    Cost assumptions for fiscal years: 2016 2015Discount rate4.06% 3.77%Expected return on plan assets7.91% 7.93%Rate of future compensation increase2.76% 2.76%Key assumptions for the U.S. SRP (our largest defined benefit pension plan with approximately 91% of the total projected benefit obligation) included a discount rate for obligation assumptions of 3.63% and expected return on plan assets of 8.00% for fiscal 2016 which is being reduced to 7.75% for fiscal 2017.The following table provides the weighted-average assumptions used to determine projected benefit obligations and net periodic benefit cost, as they pertain to our other postretirement defined benefit plans:Obligation assumptions as of:July 1, 2016 July 3, 2015Discount rate3.41% 3.86%Rate of future compensation increaseN/A 2.75%    Cost assumptions for fiscal year: 2016 2015Discount rate3.86% 3.57%Rate of future compensation increase2.75% 2.75%The expected long-term rate of return on plan assets reflects the expected returns for each major asset class in which the plans invest, the weight of each asset class in the strategic allocation, the correlations among asset classes and their expected volatilities. Our expected rate of return on plan assets is estimated by evaluating both historical returns and estimates of future returns. Specifically, the determination of the expected long-term rate of return takes into consideration: (1) the plan’s actual historical annual return on assets, net of fees, over the past 15, 20 and 25 year time periods, (2) historical broad market returns over long-term timeframes weighted by the plan’s strategic allocation, and (3) independent estimates of future long-term asset class returns, weighted by the plan’s strategic allocation. Based on this approach, the long-term annual rate of return on assets is estimated at 7.75% for fiscal 2017 for the U.S. defined benefit plans. The weighted average long-term annual rate of return on assets for all defined benefit pension plans is estimated at 7.65% for fiscal 2017.The assumed rate of future increases in the per capita cost of healthcare (the healthcare trend rate) is 7.25% for fiscal 2017, decreasing ratably to 4.75% in fiscal 2027, and was 6.83% for fiscal 2016, decreasing ratably to 5.00% in fiscal 2022. Increasing or decreasing the healthcare trend rates by one percent per year would not have a material effect on the benefit obligation or the aggregate annual service and interest cost components. To the extent that actual experience differs from these assumptions, the effect will be amortized over the average future service period of the covered active employees.Investment PolicyThe investment strategy for managing defined benefit plan assets is to seek an optimal rate of return relative to an appropriate level of risk. We manage substantially all defined benefit plan assets on a commingled basis in a master investment trust. In making these asset allocation decisions, we take into account recent and expected returns and volatility of returns for each asset class, the expected correlation of returns among the different investments, as well as anticipated funding and cash flows. To enhance returns and mitigate risk, we diversify our investments by strategy, asset class, geography and sector and engage a large number of managers to gain broad exposure to the markets.The following table provides the current strategic target asset allocation ranges by asset category: Target AssetAllocationEquity investments50%—75%Fixed income investments20%—42%Hedge funds5%—12%Cash and cash equivalents0%—10%Fair Value of Plan AssetsThe following is a description of the valuation techniques and inputs used to measure fair value for major categories of investments as reflected in the table that follows such description:•Domestic and international equity, which include common and preferred shares, domestic listed and foreign listed equity securities, open-ended and closed-ended mutual funds and exchange traded funds, are generally valued at the closing price reported on the major market exchanges on which the individual securities are traded at the measurement date. Because these assets are traded predominantly on liquid, widely traded public exchanges, equity securities are treated as Level 1 assets.•Private equity funds, which include buy-outs, mezzanine, venture capital, distressed assets and secondaries are typically limited partnership investment structures. Private equity valuations are based on the valuation of the underlying investments, which include inputs such as cost, operating results, discounted future cash flows and market-based comparable data. Private equity funds generally have liquidity restrictions that extend for ten or more years. Valuations are largely based on unobservable inputs and short-term liquidity is restricted; consequently, private equity is categorized as Level 3. At July 1, 2016 and July 3, 2015, our defined benefit plans had future unfunded commitments totaling $178 million and $198 million, respectively, related to private equity fund investments. •Hedge funds, which include equity long/short, event driven and fixed income arbitrage and global macro, are typically limited partnership investment structures. Limited partnership interests in hedge funds are primarily valued using a market approach based on NAV calculated by the funds and are not publicly available. Hedge funds that permit redemption on a quarterly or more frequent basis with 90 or fewer days notice are generally classified within Level 2 of the fair value hierarchy. All other hedge funds are classified as Level 3.•Fixed income investments, which include U.S. Government securities and investment and non-investment grade corporate bonds, are generally valued using pricing models that use verifiable, observable market data such as interest rates, benchmark yield curves and credit spreads, bids provided by brokers or dealers, or quoted prices of securities with similar characteristics. Fixed income investments are categorized as Level 2.•Other is primarily comprised of guaranteed insurance contracts valued at book value, which approximates fair value, calculated using the prior year balance adjusted for investment returns and changes in cash flows.•Cash and cash equivalents are primarily comprised of short-term money market funds valued at cost, which approximates fair value, or valued at quoted market prices of identical instruments. Cash and currency are categorized as Level 1; cash equivalents, such as money market funds or short-term commingled funds, are assigned to Level 2.The following table provides the fair value of plan assets held by our defined benefit plans by asset category and by fair value hierarchy level: July 1, 2016 Total Level 1 Level 2 Level 3         (In millions)Asset Category       Equities:       Domestic equities$1,410 $1,070 $340 $—International equities724 452 272 —Alternative investments:       Private equity664 — — 664Hedge funds329 — 47 282Commodities and real estate36 — — 36Fixed income:       Corporate bonds557 — 557 —Government securities571 — 571 —Other2 — — 2Cash and cash equivalents197 31 166 —Total4,490 $1,553 $1,953 $984Payables, net(1)      Total fair value of plan assets$4,489               July 3, 2015 Total Level 1 Level 2 Level 3 (In millions)Asset Category       Equities:       Domestic equities$1,560 $1,216 $344 $—International equities801 352 304 145Alternative investments:       Private equity886 — — 886Hedge funds420 33 49 338Commodities and real estate45 — — 45Fixed income:       Corporate bonds363 — 363 —Government securities366 — 366 —Other84 — 71 13Cash and cash equivalents236 30 206 —Total4,761 $1,631 $1,703 $1,427Payables, net(4)      Total fair value of plan assets$4,757      The following table presents a reconciliation of the beginning and ending defined benefit plan asset balances that use significant unobservable inputs (Level 3) to measure fair value: PrivateEquity, Commodities and Real Estate HedgeFunds Equity Other Total     (In millions)    Level 3 balance — June 27, 2014$— $— $— $— $—Transfers in via acquisition932 352 148 13 1,445Realized gains, net9 — — — 9Unrealized gains (losses), net14 (10) (3) — 1Sales, net(24) (4) — — (28)Level 3 balance — July 3, 2015931 338 145 13 1,427Realized gains (losses), net109 (8) 127 1 229Unrealized losses, net(121) (20) (137) (3) (281)Sales, net(219) (28) (135) (9) (391)Level 3 balance — July 1, 2016$700 $282 $— $2 $984ContributionsFunding requirements under Internal Revenue Service (“IRS”) rules are a major consideration in making contributions to our postretirement benefit plans. With respect to U.S. qualified pension plans, we intend to contribute annually not less than the required minimum funding thresholds.The Highway and Transportation Funding Act of 2014 (“HATFA”) and the Bipartisan Budget Act of 2015 (“BBA 2015”) further extended the interest rate stabilization provision of MAP-21 until 2020. We currently anticipate making total contributions to our U.S. qualified pension plans in the range of $185 million to $195 million during fiscal 2017.Estimated Future Benefit PaymentsThe following table provides the projected timing of payments for benefits earned to date and the expectation that certain future service will be earned by current active employees for our defined benefit plans: Pension OtherBenefits Total (In millions)Fiscal Years:     2017$393 $29 $4222018378 28 4062019380 28 4082020383 28 4112021384 27 4112022 — 20261,914 119 2,033 |

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| - Definition
The entire disclosure for pension and other postretirement benefits.
+ References
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