Financial Instruments and Fair Value Measurements - Schedule of Aggregate Principal and Fair Value Amount of Outstanding 2025 Senior Notes, 2026 Senior Notes and Term Loan B Facility (Details) - USD ($) $ in Millions		Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Carrying value amount		$ 831		$ 839
Term Loan B Facility
Debt Instrument [Line Items]
Aggregate principal amount			$ 500
Level 2 | 2026 Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount		345		345
Unamortized debt issuance costs		(2)		(3)
Carrying value amount		343		342
Fair value amount	[1]	323		304
Level 2 | Term Loan B Facility
Debt Instrument [Line Items]
Aggregate principal amount	[2]	499		0
Unamortized debt issuance costs	[2]	(6)		0
Carrying value amount	[2]	493		0
Fair value amount	[1],[2]	504		0
Level 2 | 2025 Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount	[2]	0		500
Unamortized debt issuance costs	[2]	0		(3)
Carrying value amount	[2]	0		497
Fair value amount	[1],[2]	$ 0		$ 502

[1] We estimate the fair value of the 2025 Senior Notes, 2026 Senior Notes, and Term Loan B Facility based on recently reported market transactions and/or prices for identical or similar financial instruments obtained from a third-party pricing source.

[2] During the third quarter of 2024, the Company issued the $500 million Term Loan B Facility and used these borrowed funds to redeem all $500 million aggregate principal amount of the Company's outstanding 2025 Senior Notes. Refer to “Note 8: Debt” for further information.