Fair Value Measurements - Difference between fair values fair value option (Details) - Fair Value Option - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair Value	$ 1,613	$ 1,871
Outstanding Principal Amount	1,451	1,405
Difference	$ 162	$ 466

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

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