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v3.21.1

Fair Value Measurements (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Embedded derivatives |  |
Impairment and related charges, net of tax | $ 135 |
Recurring | Accrued liabilities |  |
Embedded derivatives |  |
Netting and Collateral | 0 | $ 0
Recurring | Accrued liabilities | Total Fair Value |  |
Embedded derivatives |  |
Embedded derivatives | 32 | 64
Recurring | Accrued liabilities | Level 1 |  |
Embedded derivatives |  |
Embedded derivatives | 0 | 0
Recurring | Accrued liabilities | Level 2 |  |
Embedded derivatives |  |
Embedded derivatives | 32 | 64
Recurring | Accrued liabilities | Level 3 |  |
Embedded derivatives |  |
Embedded derivatives | $ 0 | $ 0

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