Shareholders' Equity - Changes in AOCI (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2022	Apr. 04, 2021
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	$ (1,920)
Ending Balance	(1,865)
Changes in Unrealized Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	144	$ 272
Other comprehensive income, pretax	(54)	(91)
Benefit for income tax, net	14	23
Other comprehensive loss, net of tax	(40)	(68)
Ending Balance	104	204
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	538	641
Other comprehensive income, pretax	62	(38)
Benefit for income tax, net	0	0
Other comprehensive loss, net of tax	62	(38)
Ending Balance	600	603
Changes in Retirement Plans’ Funded Status
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(2,602)	(4,463)
Other comprehensive income, pretax	42	101
Benefit for income tax, net	(9)	(23)
Other comprehensive loss, net of tax	33	78
Ending Balance	(2,569)	(4,385)
AOCL
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(1,920)	(3,550)
Other comprehensive income, pretax	50	(28)
Benefit for income tax, net	5	0
Other comprehensive loss, net of tax	55	(28)
Ending Balance	$ (1,865)	$ (3,578)