Income Taxes Income Taxes (Schedule of Effective Tax Rate Reconciliation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax provision computed at U.S. federal statutory tax rate	$ 472	$ 473	$ 208
Change in valuation allowance	(50)	(1)	(47)
Equity income and dividends	(29)	(54)	(38)
(Income) expense not resulting in tax impact, net	(53)	(46)	(9)
U.S. tax effect of foreign earnings and dividends	332	65	85
Foreign tax credits	(328)	(51)	(76)
Other foreign tax rate differentials	(66)	7	4
Legislative changes	(8)	1	(3)
State income taxes, net of federal benefit	6	4	6
Other, net	54	33	(6)
Income tax provision (benefit)	$ 330	$ 247	$ 124
Effective income tax rate	15.00%	11.00%	13.00%
Effective Income Tax Rate Reconciliation, Recognition of basis differences in investment in affiliates, Amount	$ 0	$ (14)	$ 0
Effective Income Tax Rate Reconciliation, Asset transfers between wholly owned foreign affiliates, Amount	0	(170)	$ 0
Unrecognized Tax Benefit, Decrease resulting from changes in uncertain tax position and impacts of amended tax return filings	$ 65	$ 40