Income Tax Expense - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
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

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from acquisitions.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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