Summary of Significant Accounting Policies - Liabilities Measured at Fair Value (Details) - USD ($) $ in Millions |
Mar. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
| Debt | $ 9,581 | $ 9,052 |
| Level 1 | ||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
| Debt | 0 | 0 |
| Level 2 | ||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
| Debt | 9,581 | 9,052 |
| Level 3 | ||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
| Debt | $ 0 | $ 0 |
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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