Income Taxes (Schedule of Earnings Before Income Taxes and Provision For Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Earnings before income taxes	$ 12,232	$ 10,953	$ 9,872
United States federal and state:
Current	73	(80)	17
Deferred	27	53	24
Total United States	100	(27)	41
Outside United States:
Current	2,616	2,600	2,417
Deferred	(45)	(196)	(165)
Total outside United States	2,571	2,404	2,252
Total provision for income taxes	$ 2,671	$ 2,377	$ 2,293