Income Taxes Reconciliation of Income Tax Satutory Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income tax expense at United States statutory rate	$ 1,443	$ 79	$ 1,054
Increase (reduction) in income taxes resulting from:
Partnership earnings not subject to tax	(1,211)	88	(866)
Noncontrolling interests	0	16	0
State tax, net of federal tax benefit	85	58	12
Statutory rate change	(46)	0	0
Valuation allowance	(63)	0	0
Uncertain tax positions	(34)	0	0
Dividend received deduction	(4)	0	(3)
Foreign taxes	1	(7)	0
Other	13	3	(2)
Income tax expense	$ 184	$ 237	$ 195