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Investment in Unconsolidated Affiliate - Summary of Financial Information for Significant Unconsolidated Affiliates Accounted for Under the Equity Method (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2019 USD ($)
Equity Method Investments and Joint Ventures [Abstract] |
Total current assets | $ 4,288
Total long-term assets | 1
Total assets | 4,289
Total current liabilities | 4,243
Total long-term liabilities | 0
Total liabilities | 4,243
Total revenue | 467
Total expenses | 249
Operating income | 218
Net income | 215
Income from investments in unconsolidated affiliates | $ 27

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