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v3.20.2

Financial Instruments (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Short-Term Investments [Abstract] |  |
Short-term investments | $ 60 | $ 60
Short-term investments reclassified as other assets | 15 |
Fair Value of Debt Instruments [Abstract] |  |
Fair value of total debt | 33,200 | 27,200
Fair value of total debt in excess of (less than) carrying value | 5,100 | $ 2,000
Significant Other Observable Inputs (Level 2) [Member] | Time Deposits [Member] |  |
Short-Term Investments [Abstract] |  |
Short-term investments | $ 75 |

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