Income Taxes (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Mar. 29, 2019	Mar. 30, 2018	Mar. 29, 2019	Mar. 30, 2018
Income Tax Contingency [Line Items]
Effective tax rate	14.10%	4.80%	15.70%	25.30%
Benefit for adjustment to provisional deferred tax balances		$ 33
Benefit for adjustment to provisional deferred tax balances, per diluted share (in dollars per share)		$ 0.27
Write-down of deferred tax assets balances due to changes in enacted tax rate				$ 25
Write-down of deferred tax assets balances due to changes in enacted tax rate, per diluted share (in dollars per share)				$ 0.20
Benefit from impact of lower tax rate				$ 26
Benefit from impact of lower tax rate, per diluted share (in dollars per share)				$ 0.21
Benefit from releasing releasing provisions for uncertain tax positions and impact of differences in GAAP and tax accounting				$ 22
Benefit from releasing releasing provisions for uncertain tax positions and impact of differences in GAAP and tax accounting, per diluted share (in dollar per share)				$ 0.18