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v3.20.1

Acquisitions, Discontinued Operations and Dispositions - Major Classes of Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Current assets - discontinued operations | $ 0 | $ 197
Non-current assets - discontinued operations | 0 | 1,012
Current liabilities - discontinued operations | 0 | 72
Other non-current liabilities |  | 65
Non-current liabilities - discontinued operations | $ 0 | 635
South Central Portfolio | Discontinued Operations |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Cash and cash equivalents |  | 89
Accounts receivable, net |  | 49
Inventory |  | 35
Other current assets |  | 5
Current assets - discontinued operations |  | 178
Property, plant and equipment, net |  | 408
Other non-current assets |  | 1
Non-current assets - discontinued operations |  | 409
Accounts payable |  | 19
Other current liabilities |  | 5
Current liabilities - discontinued operations |  | 24
Out-of-market contracts, net |  | 50
Other non-current liabilities |  | 11
Non-current liabilities - discontinued operations |  | 61
Carlsbad Energy Holdings LLC | Discontinued Operations |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Restricted Cash |  | 4
Accounts receivable, net |  | 10
Other current assets |  | 5
Current assets - discontinued operations |  | 19
Property, plant and equipment, net |  | 590
Intangible assets, net |  | 9
Other non-current assets |  | 4
Non-current assets - discontinued operations |  | 603
Current portion of long term debt and capital leases |  | 20
Accounts payable |  | 27
Other current liabilities |  | 1
Current liabilities - discontinued operations |  | 48
Long-term debt and capital leases |  | 572
Other non-current liabilities |  | 2
Non-current liabilities - discontinued operations |  | $ 574

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