Income Taxes Unrecognized Tax Benefit Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2018		Dec. 30, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Balance at beginning of year	$ 60		$ 63	$ 73
Additions, current year	51	[1]	6	6
Additions, prior year	4		5	1
Reductions, prior year	(13)		(8)	(14)
Settlements, decreases	(4)		(4)
Settlements, increases				1
Lapse in statute of limitations	(1)		(2)	(4)
Balance at end of year	97		60	63
Tax reserves for transition tax on foreign earnings	47
Income tax examination interest payments	2
Income Tax Examination, Interest Expense	3		2	2
Accrued tax-related interest and penalties	$ 22		$ 21	$ 19

[1] During the fourth quarter of 2018, the Company recorded, as part of its final estimate under SAB 118, $47 million of tax reserves related to uncertainty in our interpretation of the statute and associated regulations.