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Shareholders' Equity - Changes in AOCI (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 03, 2022	Jul. 04, 2021
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	$ (1,920)
Ending Balance	(2,153)
Changes in Unrealized Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	144	$ 272
Other comprehensive loss, pretax	(156)	(86)
Benefit for income tax, net	41	23
Other comprehensive income, net of tax	(115)	(63)
Ending Balance	29	209
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	538	641
Other comprehensive loss, pretax	(189)	30
Benefit for income tax, net	0	0
Other comprehensive income, net of tax	(189)	30
Ending Balance	349	671
Changes in Retirement Plans’ Funded Status
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(2,602)	(4,463)
Other comprehensive loss, pretax	89	172
Benefit for income tax, net	(18)	(36)
Other comprehensive income, net of tax	71	136
Ending Balance	(2,531)	(4,327)
AOCL
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(1,920)	(3,550)
Other comprehensive loss, pretax	(256)	116
Benefit for income tax, net	23	(13)
Other comprehensive income, net of tax	(233)	103
Ending Balance	$ (2,153)	$ (3,447)

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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