Discontinued Operations and Equity-Method Investment - Schedule of Equity-Method Investment (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 04, 2021	Dec. 31, 2020	Mar. 29, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Income from continuing operations	$ 4,877		$ 2,483
Net income	4,886		3,364
Income attributable to shareholders	$ 4,877		$ 3,355
Consumer Healthcare JV [Member]
Schedule of Equity Method Investments [Line Items]
Net sales		$ 3,096		$ 3,188
Cost of sales		(1,188)		(1,811)
Gross profit		1,908		1,377
Income from continuing operations		233		46
Net income		233		46
Income attributable to shareholders		$ 221		$ 37