Fair Value Measurements - Gains (Losses) on Financial Instruments (Details) - USD ($) $ in Millions |
3 Months Ended | |
---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
|
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
Total | $ (3) | $ 18 |
2.75% Exchangeable Senior Debentures | Senior Notes | ||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
Stated interest rate (as a percent) | 2.75% | |
Debt measured at fair value | ||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
Total | $ (3) | 15 |
Gain (loss) on specific credit risk | (1) | (31) |
Cumulative loss on credit risk | 8 | |
Other | ||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
Total | $ 0 | $ 3 |