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Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Equity [Abstract] |
Schedule of Net Income Attributable to Parent And Transfers To From Noncontrolling Interests [Text Block] | The following table summarizes the net income attributable to The AES Corporation and all transfers (to) from noncontrolling interests for the periods indicated (in millions):
|  | December 31,
|  | 2019 |  | 2018 |  | 2017
Net income (loss) attributable to The AES Corporation |  | $ | 303 |  |  | $ | 1,203 |  |  | $ | (1,161 | )
Transfers from noncontrolling interest: |  |  |  |  |  |
Increase (decrease) in The AES Corporation's paid-in capital for sale of subsidiary shares |  | (5 | ) |  | (3 | ) |  | 13 |
Increase (decrease) in The AES Corporation's paid-in-capital for purchase of subsidiary shares |  | — |  |  | — |  |  | 240 |
Net transfers (to) from noncontrolling interest |  | (5 | ) |  | (3 | ) |  | 253 |
Change from net income (loss) attributable to The AES Corporation and transfers (to) from noncontrolling interests |  | $ | 298 |  |  | $ | 1,200 |  |  | $ | (908 | )
Components of Accumulated Other Comprehensive Income | The changes in AOCL by component, net of tax and noncontrolling interests, for the periods indicated were as follows (in millions):
| Foreign currency translation adjustment, net |  | Derivative gains (losses), net |  | Unfunded pension obligations, net |  | Total
Balance at December 31, 2017 | $ | (1,486 | ) |  | $ | (333 | ) |  | $ | (57 | ) |  | $ | (1,876 | )
Other comprehensive loss before reclassifications | (214 | ) |  | (64 | ) |  | — |  |  | (278 | )
Amount reclassified to earnings | (21 | ) |  | 78 |  |  | 7 |  |  | 64 |
Other comprehensive income (loss) | $ | (235 | ) |  | $ | 14 |  |  | $ | 7 |  |  | $ | (214 | )
Cumulative effect of a change in accounting principle | — |  |  | 19 |  |  | — |  |  | 19 |
Balance at December 31, 2018 | $ | (1,721 | ) |  | $ | (300 | ) |  | $ | (50 | ) |  | $ | (2,071 | )
Other comprehensive loss before reclassifications | $ | (23 | ) |  | $ | (202 | ) |  | $ | (15 | ) |  | $ | (240 | )
Amount reclassified to earnings | 23 |  |  | 36 |  |  | 27 |  |  | 86 |
Other comprehensive income (loss) | $ | — |  |  | $ | (166 | ) |  | $ | 12 |  |  | $ | (154 | )
Cumulative effect of a change in accounting principle | — |  |  | (4 | ) |  | — |  |  | (4 | )
Balance at December 31, 2019 | $ | (1,721 | ) |  | $ | (470 | ) |  | $ | (38 | ) |  | $ | (2,229 | )
Reclassification out of Accumulated Other Comprehensive Income | Reclassifications out of AOCL are presented in the following table. Amounts for the periods indicated are in millions and those in parenthesis indicate debits to the Consolidated Statements of Operations:
Details About |  |  |  | December 31,
AOCL Components |  | Affected Line Item in the Consolidated Statements of Operations |  | 2019 |  | 2018 |  | 2017
Foreign currency translation adjustments, net |  |  |  |
|  | Gain (loss) on disposal and sale of business interests |  | $ | (23 | ) |  | $ | 19 |  |  | $ | (188 | )
|  | Net gain from disposal of discontinued operations |  | — |  |  | 2 |  |  | (455 | )
|  | Net income (loss) attributable to The AES Corporation |  | $ | (23 | ) |  | $ | 21 |  |  | $ | (643 | )
Derivative gains (losses), net |  |  |  |
|  | Non-regulated revenue |  | $ | (1 | ) |  | $ | (6 | ) |  | $ | 25 |
|  | Non-regulated cost of sales |  | (12 | ) |  | (3 | ) |  | (12 | )
|  | Interest expense |  | (26 | ) |  | (49 | ) |  | (79 | )
|  | Gain (loss) on disposal and sale of business interests |  | 1 |  |  | — |  |  | — |
|  | Foreign currency transaction gains (losses) |  | (12 | ) |  | (59 | ) |  | 15 |
|  | Income from continuing operations before taxes and equity in earnings of affiliates |  | (50 | ) |  | (117 | ) |  | (51 | )
|  | Income tax expense |  | 13 |  |  | 24 |  |  | 1 |
|  | Net equity in earnings (losses) of affiliates |  | (5 | ) |  | — |  |  | — |
|  | Income (loss) from continuing operations |  | (42 | ) |  | (93 | ) |  | (50 | )
|  | Less: Income from continuing operations attributable to noncontrolling interests and redeemable stock of subsidiaries |  | 6 |  |  | 15 |  |  | 13 |
|  | Net income (loss) attributable to The AES Corporation |  | $ | (36 | ) |  | $ | (78 | ) |  | $ | (37 | )
Amortization of defined benefit pension actuarial losses, net |  |  |  |
|  | Non-regulated cost of sales |  | — |  |  | — |  |  | 1 |
|  | General and administrative expenses |  | — |  |  | — |  |  | (1 | )
|  | Other expense |  | (2 | ) |  | (6 | ) |  | — |
|  | Gain (loss) on disposal and sale of business interests |  | (26 | ) |  | — |  |  | — |
|  | Income from continuing operations before taxes and equity in earnings of affiliates |  | (28 | ) |  | (6 | ) |  | — |
|  | Income tax expense |  | — |  |  | 2 |  |  | — |
|  | Income (loss) from continuing operations |  | (28 | ) |  | (4 | ) |  | — |
|  | Net gain (loss) from disposal of discontinued operations |  | — |  |  | (2 | ) |  | (266 | )
|  | Net income (loss) |  | (28 | ) |  | (6 | ) |  | (266 | )
|  | Less: Income from continuing operations attributable to noncontrolling interests and redeemable stock of subsidiaries |  | 1 |  |  | (1 | ) |  | — |
|  | Add: Loss from discontinued operations attributable to noncontrolling interests |  | — |  |  | — |  |  | 18 |
|  | Net income (loss) attributable to The AES Corporation |  | $ | (27 | ) |  | $ | (7 | ) |  | $ | (248 | )
Total reclassifications for the period, net of income tax and noncontrolling interests |  | $ | (86 | ) |  | $ | (64 | ) |  | $ | (928 | )

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- Definition Schedule Of Net Income Attributable To Parent And Transfers To From Noncontrolling Interests + References No definition available. + Details
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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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