| **Fair Value Measurements (Tables)**                                                           | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
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| **Fair Value Disclosures [Abstract]**                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| Assets and Liabilities Measured at Fair Value on a Recurring Basis                             | The following table presents the fair value hierarchy of our assets and liabilities measured at fair value on a recurring basis (at least annually) as of December 30, 2016:   Level 1 Level 2 Level 3 Total           (In millions)Assets       Deferred compensation plan investments: (1)       Corporate-owned life insurance$— $18 $— $18Stock fund53 — — 53Equity security47 — — 47Liabilities       Deferred compensation plans (2)55 81 — 136         (1)Represents investments held in a “Rabbi Trust” associated with our non-qualified deferred compensation plans, which we include in the “Other current assets” and “Other non-current assets” line items in our Condensed Consolidated Balance Sheet (Unaudited).(2)Primarily represents obligations to pay benefits under certain non-qualified deferred compensation plans, which we include in the “Compensation and benefits” and “Other long-term liabilities” line items in our Condensed Consolidated Balance Sheet (Unaudited). 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. |
| Carrying Amounts and Estimated Fair Values of Financial Instruments Not Measured at Fair Value | The following table presents the carrying amounts and estimated fair values of our significant financial instruments that were not measured at fair value (carrying amounts of other financial instruments not listed in the table below approximate fair value due to the short-term nature of those items):  December 30, 2016 July 1, 2016  CarryingAmount FairValue CarryingAmount FairValue  (In millions)Long-term debt (including current portion) (1)$4,217 $4,424 $4,502 $4,873         (1)The fair value was estimated using a market approach based on quoted market prices for our debt traded in the secondary market. If our long-term debt in our balance sheet were measured at fair value, it would be categorized in Level 2 of the fair value hierarchy.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |

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Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).
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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258
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