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Income Tax Expense - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions | 12 Months Ended
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Jun. 28, 2019 | Jun. 29, 2018 | Jun. 30, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |  |
Unrecognized tax benefit, beginning balance | $ 551 | $ 522 | $ 491
Gross increases related to current year tax positions | 172 | 38 | 35
Gross increases related to prior year tax positions | 8 | 30 | 3
Gross decreases related to prior year tax positions | (24) | (9) | (8)
Settlements | (1) | (19) | (8)
Lapse of statute of limitations | (11) | (11) | (19)
Acquisitions | 0 | 0 | 28
Unrecognized tax benefit, ending balance | $ 695 | $ 551 | $ 522

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=116821951&loc=SL37586934-109318 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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