Income Taxes - Schedule of Reconciliation of Effective Tax Rate and Federal Statutory Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Effective Income Tax Rate Reconciliation [Line Items]
Federal statutory tax rate	$ 288
Effect of cross-border tax laws	4
Nontaxable or nondeductible items	(14)
Other	(3)
State and local income taxes, net of federal income tax effect	54
Worldwide changes in unrecognized tax benefits	5
Total tax provision	$ 304	$ 301	$ 275
Federal statutory tax rate	21.00%	21.00%	21.00%
Effect of cross-border tax laws	0.20%
Nontaxable or nondeductible items	(1.00%)
Other	(0.20%)
State income taxes, net of federal income tax benefit	3.90%	4.60%	4.50%
Non-deductible employee stock purchase plan expense		0.20%	0.20%
Non-deductible meals and entertainment		0.20%	0.20%
Non-deductible officers’ compensation		0.40%	0.40%
Tax benefit from stock-based compensation		(1.90%)	(1.60%)
Effect of rates different than statutory		(1.10%)
Worldwide changes in unrecognized tax benefits	0.30%
Other, net		(0.30%)	(0.60%)
Effective tax rate	22.10%	23.10%	24.10%
Bermuda
Effective Income Tax Rate Reconciliation [Line Items]
Other	$ 1
Effect of rates different than statutory	$ (24)
Other	0.10%
Effect of rates different than statutory	(1.70%)
Other Foreign
Effective Income Tax Rate Reconciliation [Line Items]
Effect of rates different than statutory	$ (7)
Effect of rates different than statutory	(0.50%)