Stockholders' Equity (Deficit) - Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Number of Options
Options outstanding at beginning of period (in shares)	1.5
Granted (in shares)	0.0
Exercised (in shares)	0.0
Cancelled (in shares)	0.0
Options outstanding at end of period (in shares)	1.5	1.5
Options exercisable (in shares)	1.5
Options expected to vest (in shares)	0.0
Weighted Average Exercise Price (per share)
Options outstanding at beginning of period (in USD per share)	$ 34.98
Granted (in USD per share)	80.36
Exercised (in USD per share)	35.42
Cancelled (in USD per share)	0
Options outstanding at end of period (in USD per share)	35.27	$ 34.98
Options exercisable at end of period (in usd per share)	34.90
Options expected to vest (in USD per share)	$ 79.12
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options outstanding, Weighted Average Remaining Contract Term (Years)	2 years	3 years 1 month 6 days
Options exercisable, Weighted Average Remaining Contractual Term (Years)	2 years
Options expected to vest, Weighted Average Remaining Contract Term (years)	8 years 6 months
Options outstanding at beginning of period, Aggregate Intrinsic Value	$ 72
Exercised, aggregate intrinsic value	2	$ 14	$ 3
Options outstanding at end of period, Aggregate Intrinsic Value	77	$ 72
Options exercisable, Aggregate Intrinsic Value	77
Options expected to vest, Aggregate Intrinsic Value	$ 0