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Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Accounts Receivable From Contracts With Customers | $ 2,130 | $ 1,337
Revolving Credit Agreement (New Facility) |  |
Maximum borrowing capacity | $ 2,000 |

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