Income Taxes - Components of Income Tax Benefit (Expense) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income from continuing operations before income taxes	$ 3,083	$ 315
Current
Federal	(215)	30
State and Local	(34)	(10)
Foreign	(198)	(117)
Total current tax expense	(447)	(97)
Deferred
Federal	2,213	78
State and Local	73	4
Foreign	(46)	(1)
Total deferred tax benefit	2,240	81
Total income tax benefit (expense)	(1,793)	16
Income from continuing operations	$ 4,876	$ 299
Worldwide effective tax rate	(58.00%)	5.00%