Supplemental Financial Information (Details) - Equity investments - USD ($) $ in Millions |
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
| Marketable equity securities | $ 19 | $ 1 |
| Other Investments | 40 | 25 |
| Equity-accounted investments | 61 | 11 |
| Investments | $ 120 | $ 37 |
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all investments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of investment in marketable security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of investments classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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