| **Income Taxes (Tables)**                                                                      | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
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| **Income Tax Disclosure [Abstract]**                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| Provisions for income taxes                                                                    | The provisions for current and deferred income taxes are summarized as follows: 2016 2015 2014       (In millions)Current:     United States$(27) $150 $213International19 8 11State and local(11) 13 12 (19) 171 236Deferred:     United States271 (30) 5International(22) 4 —State and local36 (2) 15 285 (28) 20 $266 $143 $256                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| Total Income tax provision summary                                                             | The total income tax provision is summarized as follows: 2016 2015 2014       (In millions)Continuing operations$266 $143 $256Discontinued operations(4) — (10)Total income tax provision$262 $143 $246                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| Components of deferred income tax assets (liabilities)                                         | The components of deferred income tax assets (liabilities) were as follows:  July 1, 2016 July 3, 2015      (In millions)Inventory valuations $32 $46Accruals 280 299Deferred revenue 24 38Depreciation (53) (75)Unbilled receivables (31) (34)Domestic tax loss and credit carryforwards 42 28International tax loss and credit carryforwards 68 42International research and development expense deferrals 4 12Acquired intangibles (564) (641)Share-based compensation 32 32Capital loss carryforwards 212 —Long-term debt 16 22Unremitted earnings of foreign subsidiaries (52) (59)Pension and other post-employment benefits 852 820Unrealized loss on interest rate hedges 11 12Unrecognized tax benefits 14 17All other — net 2 3  889 562Valuation allowance (300) (72)  $589 $490 |
| Reconciliation of the United States statutory income tax rate to our effective income tax rate | A reconciliation of the United States statutory income tax rate to our effective income tax rate follows: 2016 2015 2014U.S. statutory income tax rate35.0 % 35.0 % 35.0 %State taxes2.4 0.9 2.0International income(0.3) (1.7) (1.1)Nondeductible goodwill14.9 1.8 —Research and development tax credit(3.3) (1.7) (0.9)Capital loss(3.8) — —U.S. production activity benefit(0.6) (3.7) (2.7)Cash repatriation— 1.4 —Settlement of tax audits(0.4) (1.8) (0.6)Other items(0.4) (0.3) 0.5Effective income tax rate43.5 % 29.9 % 32.2 %                                                                                                                                                                                                                                                                                                                                       |
| Reconciliation of the beginning and ending amounts of unrecognized tax benefits                | A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows: 2016 2015 2014       (In millions)Balance at beginning of fiscal year$124 $72 $74Additions based on tax positions taken during current fiscal year7 5 7Additions based on tax positions taken during prior fiscal years9 5 18Additions for tax positions related to acquired entities— 68 —Decreases based on tax positions taken during prior fiscal years(73) (8) (12)Decreases from lapse in statutes of limitations(1) (1) —Decreases from settlements(3) (17) (15)Balance at end of fiscal year$63 $124 $72                                                                                                                                                                                                                                                                                                  |

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