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Number of options outstanding, including both vested and non-vested options.

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Purchase price of common stock expressed as a percentage of its fair value.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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Stock Compensation Plans - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
RSUs \| Cliff
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of awards granted (in dollars per share)	$ 95.34	$ 80.28	$ 79.93
Total fair value of awards that vested	$ 14,000,000	$ 12,000,000	$ 21,000,000
Total unrecognized stock compensation expense	$ 5,000,000
Weighted average period to recognize unrecognized compensation cost	1 year 9 months 18 days
Performance-Based RSUs \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target award available for grant	0.00%
Performance-Based RSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target award available for grant	200.00%
Performance-Based RSUs \| Cliff
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Time-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of awards granted (in dollars per share)	$ 95.20	$ 76.44	$ 73.13
Total fair value of awards that vested	$ 34,000,000	$ 25,000,000	$ 39,000,000
Total unrecognized stock compensation expense	$ 35,000,000
Weighted average period to recognize unrecognized compensation cost	1 year 9 months 18 days
Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available (in shares)	73,388
Purchase price of shares in terms compared to market price per share (as a percent)	90.00%
Annual purchase limitation per employee (in dollars per employee)	$ 22,500
Share-based Payment Arrangement, Expense	$ 0
Common stock, shares authorized (in shares)	2,000,000
Shares sold to employees (in shares)	36,863	41,563
Value of shares sold to employees under purchase plan	$ 3,000,000	$ 3,000,000
2021 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares outstanding other than RSUs (in shares)	0	0	0
Shares available (in shares)	3,000,000