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v3.20.1

Fair Value (Quantitative Information) (Details) $ in Millions | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Sep. 30, 2018 USD ($)
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | $ (199) | $ (102) | $ 63 | $ 14
Interest Rate Contract [Member] |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | (269) | (184) | (140) | (182)
Foreign Exchange Contract [Member] |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | 99 | 94 | 199 | 194
Cross currency derivatives [Member] |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | (29) | (11) | 0 | 0
Commodity Contract [Member] |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | $ 0 | $ (1) | $ 4 | $ 2
Argentina, Pesos | Foreign Exchange Contract [Member] | Minimum [Member] |  |  |  |
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |
Derivative, Forward Exchange Rate | 0.97 |  |  |
Argentina, Pesos | Foreign Exchange Contract [Member] | Maximum [Member] |  |  |  |
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |
Derivative, Forward Exchange Rate | 6.67 |  |  |
Argentina, Pesos | Foreign Exchange Contract [Member] | Weighted Average [Member] |  |  |  |
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |
Derivative, Forward Exchange Rate | 3.38 |  |  |
Measurement Input, Entity Credit Risk [Member] | Interest Rate Contract [Member] | Minimum [Member] |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value Measurement Inputs, Nonrecurring | 1.80% |  |  |
Measurement Input, Entity Credit Risk [Member] | Interest Rate Contract [Member] | Maximum [Member] |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value Measurement Inputs, Nonrecurring | 6.30% |  |  |
Measurement Input, Entity Credit Risk [Member] | Interest Rate Contract [Member] | Weighted Average [Member] |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value Measurement Inputs, Nonrecurring | 6.10% |  |  |
Measurement Input, Entity Credit Risk [Member] | Cross currency derivatives [Member] | Minimum [Member] |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value Measurement Inputs, Nonrecurring | 4.60% |  |  |
Measurement Input, Entity Credit Risk [Member] | Cross currency derivatives [Member] | Maximum [Member] |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value Measurement Inputs, Nonrecurring | 4.60% |  |  |
Measurement Input, Entity Credit Risk [Member] | Cross currency derivatives [Member] | Weighted Average [Member] |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |
Fair Value Measurement Inputs, Nonrecurring | 4.60% |  |  |

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