Intangible Assets and Goodwill - Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 02, 2022	Jan. 03, 2021
Goodwill [Roll Forward]
Goodwill beginning of period	$ 36,393	$ 33,639
Goodwill, related to acquisitions	0	1,460
Goodwill, related to divestitures	(9)
Currency translation/other	(1,138)	1,294
Goodwill end of period	35,246	36,393
Consumer Health
Goodwill [Roll Forward]
Goodwill beginning of period	10,336	9,736
Goodwill, related to acquisitions	0	0
Goodwill, related to divestitures	(9)
Currency translation/other	(517)	600
Goodwill end of period	9,810	10,336
Pharmaceutical
Goodwill [Roll Forward]
Goodwill beginning of period	11,009	9,169
Goodwill, related to acquisitions	0	1,222
Goodwill, related to divestitures	0
Currency translation/other	(429)	618
Goodwill end of period	10,580	11,009
Medical Devices
Goodwill [Roll Forward]
Goodwill beginning of period	15,048	14,734
Goodwill, related to acquisitions	0	238
Goodwill, related to divestitures	0
Currency translation/other	(192)	76
Goodwill end of period	$ 14,856	$ 15,048

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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