Income Taxes Income Taxes - Geographic Allocation of Income and Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income (loss) from Continuing Operations before Income Taxes	$ 2,346	$ 675	$ (316)
Provision for (benefit from) income taxes on continuing operations	524	(81)	(46)
Income (loss) from continuing operations after income taxes	1,822	756	(270)
Continuing Operations [Member]
Income (loss) from Continuing Operations before Income Taxes, Domestic	941	(83)	(1,352)
Income (Loss) from Continuing Operations before Income Taxes, Foreign	1,405	758	1,036
Income (loss) from Continuing Operations before Income Taxes	2,346	675	(316)
Current Federal Tax (Benefit) Expense	(13)	28	(11)
Current State and Local Tax Expense (Benefit)	6	9	1
Current Foreign Tax Expense (Benefit)	329	222	317
Total current tax expense (benefit)	322	259	307
Deferred Federal Income Tax Expense (Benefit)	164	(116)	(392)
Deferred State and Local Income Tax Expense (Benefit)	55	27	156
Deferred Foreign Income Tax Expense (Benefit)	(17)	(251)	(117)
Total deferred tax expense (benefit)	202	(340)	(353)
Provision for (benefit from) income taxes on continuing operations	524	(81)	(46)
Income (loss) from continuing operations after income taxes	$ 1,822	$ 756	$ (270)