Income Taxes - Schedule of Reconciliation of Income Tax Expense (Benefit) Computed by Applying Statutory Federal Income Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Amount
Computed “expected” federal income tax	$ 1,085	$ 315	$ 51
State income tax, net of federal income tax benefit	93	24	5
Deferred tax adjustment related to change in overall state tax rate	(23)	(7)	1
Valuation allowance	(66)	3	(4)
Excess executive compensation	10	15	5
Reserve on uncertain tax positions	6	1	6
Uncertain tax positions	(34)	(6)	(23)
Other, net	33	(1)	0
Income tax expense	$ 1,104	$ 344	$ 41
Rate
Computed “expected” federal income tax	21.00%	21.00%	21.00%
State income tax, net of federal income tax benefit	1.80%	1.59%	1.86%
Deferred tax adjustment related to change in overall state tax rate	(0.45%)	(0.46%)	0.50%
Valuation allowance	(1.28%)	0.22%	(1.58%)
Excess executive compensation	0.20%	1.03%	2.18%
Reserve on uncertain tax positions	0.12%	0.05%	2.47%
Uncertain tax positions	(0.66%)	(0.39%)	(9.63%)
Other, net	0.62%	(0.14%)	0.04%
Income tax expense	21.35%	22.90%	16.84%