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Other Income and Expense - Other Expense (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Schedule of other expense [Line Items] |  |  |
Sales-type and Direct Financing Leases, Profit (Loss) | $ 13 | [1] | $ 0
Other Nonoperating Expense | 0 |  | 44
Other Expenses | 16 |  | 4
Other Expense [Member] |  |  |
Schedule of other expense [Line Items] |  |  |
Gain (Loss) on Disposition of Assets | 3 |  | 1
Other Nonoperating Expense | 0 |  | 3
Other Expenses | $ 16 |  | $ 4
[1] | Related to a loss recognized at commencement of a sales-type lease at AES Distributed Energy. See Note 9—Leases for further information.

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