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Equity Equity - Net Income (Loss) Attributable to The AES Corporation (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to The AES Corporation | $ (949) | $ 175 | $ (482) | $ 126 | $ (85) | $ 180 | $ 69 | $ 142 | $ (1,130) | $ 306 |  | $ 769 |
Transfers from the noncontrolling interest: |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) in The AES Corporation's paid-in capital for purchase of subsidiary shares |  |  |  |  |  |  |  |  | (2) | 0 |  |  |
Net transfers (to) from noncontrolling interest |  |  |  |  |  |  |  |  | (2) | (54) |  | 36 |
Change from net income attributable to The AES Corporation and transfers (to) from noncontrolling interests |  |  |  |  |  |  |  |  | (1,132) | 252 |  | 805 |
Additional Paid-in Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Transfers from the noncontrolling interest: |  |  |  |  |  |  |  |  |  |  |  |  |
Net increase in The AES Corporation's paid-in capital for sale of subsidiary shares |  |  |  |  |  |  |  |  | 84 | 323 |  | 29 |
Increase (decrease) in The AES Corporation's paid-in capital for purchase of subsidiary shares |  |  |  |  |  |  |  |  | (2) |  |  | 7 |
Retained Earnings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Transfers from the noncontrolling interest: |  |  |  |  |  |  |  |  |  |  |  |  |
Net increase in The AES Corporation's paid-in capital for sale of subsidiary shares |  |  |  |  |  |  |  |  | (84) | (377) |  | 0 |
Increase (decrease) in The AES Corporation's paid-in capital for purchase of subsidiary shares |  |  |  |  |  |  |  |  | 0 |  |  | 0 |
IPALCO Enterprises, Inc. [Member] | Retained Earnings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Transfers from the noncontrolling interest: |  |  |  |  |  |  |  |  |  |  |  |  |
Net increase in The AES Corporation's paid-in capital for sale of subsidiary shares |  |  |  |  |  |  |  |  | $ (84) | $ (377) | [1] | $ 0 | [1]
[1] | See Note 18—Redeemable stock of subsidiaries for further information on increase in paid-in capital transferred to redeemable stock of subsidiaries.

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