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Derivative and Hedging Activities - Quantitative Disclosures Level 3 (Details) - Energy related derivative $ in Millions | Dec. 31, 2019 USD ($)
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Oil |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |
Fair value, asset | $ 14
Natural gas |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |
Fair value, liability | $ (2)
Weighted average | Measurement input, price volatility | Oil |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |
Measurement input | 0.2562
Weighted average | Measurement input, price volatility | Natural gas |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |
Measurement input | 0.3967
Minimum | Measurement input, price volatility | Oil |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |
Measurement input | 0.2071
Minimum | Measurement input, price volatility | Natural gas |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |
Measurement input | 0.1693
Maximum | Measurement input, price volatility | Oil |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |
Measurement input | 0.6728
Maximum | Measurement input, price volatility | Natural gas |
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31) |
Measurement input | 1.7149

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