Accumulated Other Comprehensive Loss, Excluding Noncontrolling Interests (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 02, 2023	Jul. 03, 2022	Jul. 02, 2023		Jul. 03, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		$ 101,236	$ 82,685	$ 95,916		$ 77,462
Other comprehensive income/(loss), net of tax		184	(968)	196		(1,228)
Ending balance		99,293	87,469	99,293		87,469
Accumulated Other Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(8,289)	(6,157)	(8,304)		(5,897)
Other comprehensive income/(loss), net of tax		187	(963)	202	[1]	(1,223)
Ending balance		(8,102)	$ (7,119)	(8,102)		$ (7,119)
Foreign Currency Translation Adjustment [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	[2]			(8,360)
Other comprehensive income/(loss), net of tax	[1],[2]			354
Ending balance	[2]	(8,006)		(8,006)
Derivative Financial Instruments [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance				(412)
Other comprehensive income/(loss), net of tax	[1]			235
Ending balance		(177)		(177)
Available-For-Sale Securities [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance				220
Other comprehensive income/(loss), net of tax	[1]			(332)
Ending balance		(112)		(112)
Prior Service (Costs)/Credits and Other [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance				248
Other comprehensive income/(loss), net of tax	[1]			(55)
Ending balance		$ 193		$ 193

[1] Foreign currency translation adjustments include net gains related to our equity-method investment in Haleon (see Note 2C) and the impact of our net investment hedging program.

[2] Amounts do not include foreign currency translation adjustments attributable to noncontrolling interests.