Provision (Benefit) for Income Taxes Reconciliations to Recorded Tax Provision (Benefit) Table (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Effective Income Tax Rate Reconciliation [Abstract]
Provision (benefit) at statutory rate	$ 534	$ 435	$ 58
Increases (decreases) in taxes resulting from:
State income taxes (net of federal benefit)	113	71	6
State deferred income tax rate change	(92)	0	0
Federal valuation allowance	(70)	3	1
Federal settlements	(45)	0	0
Impact of nontaxable noncontrolling interests	(14)	(9)	3
Other – net	(1)	11	11
Less: Provision (benefit) for income taxes	$ 425	$ 511	$ 79