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, 2024	Dec. 31, 2023	Dec. 31, 2022
Amount
Computed “expected” federal income tax	$ 283	$ 447	$ 1,085
State income tax, net of federal income tax benefit	10	29	93
Deferred tax adjustment related to change in overall state tax rate	(26)	16	(23)
Valuation allowance	(42)	3	(66)
Excess executive compensation	9	11	10
Reserve on uncertain tax positions	(4)	6	6
Uncertain tax positions	(15)	(14)	(34)
Other, net	9	5	33
Income tax expense	$ 224	$ 503	$ 1,104
Rate
Computed “expected” federal income tax	21.00%	21.00%	21.00%
State income tax, net of federal income tax benefit	0.71%	1.35%	1.80%
Deferred tax adjustment related to change in overall state tax rate	(1.96%)	0.73%	(0.45%)
Valuation allowance	(3.09%)	0.13%	(1.28%)
Excess executive compensation	0.66%	0.50%	0.20%
Reserve on uncertain tax positions	(0.29%)	0.31%	0.12%
Uncertain tax positions	(1.14%)	(0.65%)	(0.66%)
Other, net	0.77%	0.27%	0.62%
Income tax expense	16.66%	23.64%	21.35%