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Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Integration and Separation Costs | $ 0 | $ 0 | $ 744
Percentage of FIFO Inventory | 60.00% |  |
Percentage of Weighted Average Cost Inventory | 40.00% |  |
Minimum [Member] |  |  |
Definite-Lived Intangible Asset, Useful Life | 2 years |  |
Maximum [Member] |  |  |
Definite-Lived Intangible Asset, Useful Life | 25 years |  |
Other Current Assets [Member] |  |  |
Prepaid Royalties | $ 303 |  |
Restricted Cash | 377 | $ 347 |
Other Assets [Member] |  |  |
Prepaid Royalties - Long-Term | $ 256 |  |

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- Definition Integration and separation costs includes costs incurred to prepare for and close the Merger, post-Merger integration expenses and costs incurred to prepare for the Intended Business Separations. These costs primarily consist of financial advisory, information technology, legal, accounting, consulting and other professional advisory fees associated with preparation and execution of these activities. + References No definition available. + Details
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