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Financial Instruments and Fair Value Measurements - Schedule of Aggregate Principal and Fair Value Amount of Outstanding 2025 Senior Notes and 2026 Senior Notes (Details) - USD ($) $ in Millions | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Carrying value amount |  | $ 836 | $ 833
Level 2 | 2025 Senior Notes |  |  |
Debt Instrument [Line Items] |  |  |
Aggregate principal amount |  | 500 | 500
Carrying value amount | [1] | 495 | 493
Fair value amount | [2] | 491 | 531
Level 2 | 2026 Senior Notes |  |  |
Debt Instrument [Line Items] |  |  |
Aggregate principal amount |  | 345 | 345
Carrying value amount | [3] | 341 | 340
Fair value amount | [2] | $ 279 | $ 305
[1] | Net of $5 million and $7 million of unamortized debt issuance costs as of September 30, 2022 and December 31, 2021, respectively.
[2] | We estimate the fair value of our outstanding 2025 Senior Notes and 2026 Senior Notes based on recently reported market transactions and/or prices for identical or similar financial instruments obtained from a third-party pricing source.
[3] | Net of $4 million and $5 million of unamortized debt issuance costs as of September 30, 2022 and December 31, 2021, respectively.

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