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Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs (Details) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Investments Accounted for by the Equity Method |  |
Equity investments in affiliates | $ 350 | $ 388
Current assets | 3,479 | 3,088
Property, plant and equipment, net | 2,573 | 2,593
Other non-current assets | 225 | 240
Total Assets | 12,822 | 12,531
Current liabilities | 2,852 | 2,359
Long-term debt | 6,592 | 6,042
Other non-current liabilities | 1,076 | 1,084
Total Liabilities | 11,286 | 10,853
Variable Interest Entity, Primary Beneficiary |  |
Investments Accounted for by the Equity Method |  |
Current assets | 1 | 3
Property, plant and equipment, net | 0 | 71
Other non-current assets | 26 | 27
Total Assets | 27 | 101
Current liabilities | 4 | 4
Long-term debt | 24 | 24
Other non-current liabilities | 4 | 8
Total Liabilities | 32 | 36
Redeemable noncontrolling interest | 0 | 20
Net Assets Less Noncontrolling Interest | (5) | $ 45
Agua Caliente |  |
Investments Accounted for by the Equity Method |  |
Equity investments in affiliates | 213 |
Ivampah Master Holdings LLC |  |
Investments Accounted for by the Equity Method |  |
Equity investments in affiliates | $ 6 |
Economic interest in equity method investments (as a percent) | 54.50% |

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