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v3.19.3.a.u2

Summary of Significant Accounting Policies - Additional (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2019
Funds Deposited by Counterparties |  |  |  |
Number of months beyond which company can not predict the holding of collateral (in months) | 12 months |  |  |
Accounts Receivable, Net [Abstract] |  |  |  |
Allowance for doubtful accounts | $ 43 | $ 32 |  |
Project Development Costs and Capitalized Interest |  |  |  |
Amount of interest capitalized | 3 | 7 | $ 20 |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |
Intangible assets, accumulated amortization | $ 1,262 | 1,151 |  |
Lease Revenue |  |  |  |
Lease term | 20 years |  |  |
Lessor Accounting |  |  |  |
Operating lease income | $ 20 | 21 |  |
Contingent rental income | 5 | 104 | 253 |
Gross Receipts and Sales Taxes |  |  |  |
Gross Receipts Tax | 109 | 99 | 92 |
Cost of Energy for Retail Operations |  |  |  |
Transmission and distribution charges not yet billed | 103 | 105 | 107 |
Foreign Currency Translation and Transaction Gains and Losses |  |  |  |
Cumulative translation adjustment | (13) | (13) | (2) |
Marketing and Advertising Expense |  |  |  |
Advertising expense | 66 | 73 | 66 |
Reorganization Costs |  |  |  |
Reorganization costs | 23 | $ 90 | $ 44 |
Operating lease right-of-use assets, net | 464 |  |  | $ 404
Operating lease liability | $ 556 |  |  | $ 321
South Texas Project |  |  |  |
Property, Plant and Equipment |  |  |  |
Ownership Interest (as a percent) | 44.00% |  |  |

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