Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	35.00%
Increase in effective tax rate (as a percent)		(77.60%)
Currently payable:
U.S. taxes	$ 1,941	$ 1,284	$ 12,095
International taxes	2,744	2,434	1,872
Total currently payable	4,685	3,718	13,967
Deferred:
U.S. taxes	(814)	1,210	(1,956)
International taxes	(1,662)	(2,226)	4,362
Total deferred	(2,476)	(1,016)	2,406
Provision for taxes on income	$ 2,209	$ 2,702	$ 16,373