Fair Value Measurements - Difference between fair values fair value option (Details) - Fair Value Option - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair Value	$ 72	$ 56
Outstanding Principal Amount	60	45
Difference	$ 12	$ 11

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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