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Equity (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended | 63 Months Ended
--- | --- | --- | ---
Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | $ 7,325 |  | $ 7,325 | $ 7,651 |
Net income |  | $ 203 |  |  | $ 508 | 721 | 849 |
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax |  | 0 |  |  | (1) | 0 | (1) |
Total foreign currency translation adjustment, net of income tax |  | (513) |  |  | (333) | (857) | (351) |
Total change in derivative fair value, net of income tax |  | (56) |  |  | 8 | (27) | (185) |
Total pension adjustments, net of income tax |  | 4 |  |  | 5 | 13 | 36 |
accumulated other comprehensive income reclassed to other noncurrent assets | [1] | 0 |  |  | 40 | 0 | 40 | $ 0
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets |  | (5) |  |  | 0 | (5) | 0 | (5)
Capital contributions from noncontrolling interests |  |  |  |  |  | 117 | 131 |
Distributions to noncontrolling interests |  |  |  |  |  | (182) | (380) |
Noncontrolling Interest, Increase from Business Combination | [2] |  |  |  |  | 11 | 0 |
Disposition of businesses |  |  |  |  |  | (49) | (152) |
Acquisition of treasury stock |  | (101) |  |  |  | (408) | (140) | (1,700)
Issuance and exercise of stock-based compensation benefit plans, net of income tax |  |  |  |  |  | 23 | 23 |
Dividends declared on common stock |  |  |  |  |  | (138) | (72) |
Sale of subsidiary shares to noncontrolling interests |  |  |  |  |  | (83) | 130 |
Acquisition of subsidiary shares from noncontrolling interests |  |  |  |  |  | 0 | (13) |
Ending Balance |  | $ 6,461 |  |  | $ 7,566 | $ 6,461 | $ 7,566 | 6,461
Common Stock, Dividends, Per Share, Declared |  | $ 0.10 |  |  | $ 0.05 | $ 0.20 | $ 0.10 |
Common Stock, Dividends, Per Share, Cash Paid |  | $ 0.10 | $ 0.10 | $ 0.10 |  |  |  |
Parent [Member] |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | $ 4,272 |  | $ 4,272 | $ 4,330 |
Net income |  |  |  |  |  | 391 | 563 |
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax |  |  |  |  |  | 0 | (1) |
Total foreign currency translation adjustment, net of income tax |  |  |  |  |  | (498) | (269) |
Total change in derivative fair value, net of income tax |  |  |  |  |  | 10 | (79) |
Total pension adjustments, net of income tax |  |  |  |  |  | 3 | 15 |
accumulated other comprehensive income reclassed to other noncurrent assets | [1] | $ 0 |  |  | $ 40 | 0 | 40 | 0
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets |  | (5) |  |  | 0 | (5) | 0 | (5)
Capital contributions from noncontrolling interests |  |  |  |  |  | 0 | 0 |
Distributions to noncontrolling interests |  |  |  |  |  | 0 | 0 |
Noncontrolling Interest, Increase from Business Combination | [2] |  |  |  |  | 0 | 0 |
Disposition of businesses |  |  |  |  |  | 0 | 0 |
Acquisition of treasury stock |  |  |  |  |  | (408) | (140) |
Issuance and exercise of stock-based compensation benefit plans, net of income tax |  |  |  |  |  | 23 | 23 |
Dividends declared on common stock |  |  |  |  |  | (138) | (72) |
Sale of subsidiary shares to noncontrolling interests |  |  |  |  |  | (83) | 0 |
Acquisition of subsidiary shares from noncontrolling interests |  |  |  |  |  | 0 | (13) |
Ending Balance |  | 3,567 |  |  | 4,397 | 3,567 | 4,397 | 3,567
Noncontrolling Interest [Member] |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | $ 3,053 |  | 3,053 | 3,321 |
Net income |  |  |  |  |  | 330 | 286 |
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax |  |  |  |  |  | 0 | 0 |
Total foreign currency translation adjustment, net of income tax |  |  |  |  |  | (359) | (82) |
Total change in derivative fair value, net of income tax |  |  |  |  |  | (37) | (106) |
Total pension adjustments, net of income tax |  |  |  |  |  | 10 | 21 |
accumulated other comprehensive income reclassed to other noncurrent assets | [1] | 0 |  |  | 0 | 0 | 0 | 0
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets |  | 0 |  |  | 0 | 0 | 0 | 0
Capital contributions from noncontrolling interests |  |  |  |  |  | 117 | 131 |
Distributions to noncontrolling interests |  |  |  |  |  | (182) | (380) |
Noncontrolling Interest, Increase from Business Combination | [2] |  |  |  |  | 11 | 0 |
Disposition of businesses |  |  |  |  |  | (49) | (152) |
Acquisition of treasury stock |  |  |  |  |  | 0 | 0 |
Issuance and exercise of stock-based compensation benefit plans, net of income tax |  |  |  |  |  | 0 | 0 |
Dividends declared on common stock |  |  |  |  |  | 0 | 0 |
Sale of subsidiary shares to noncontrolling interests |  |  |  |  |  | 0 | 130 |
Acquisition of subsidiary shares from noncontrolling interests |  |  |  |  |  | 0 | 0 |
Ending Balance |  | $ 2,894 |  |  | $ 3,169 | $ 2,894 | $ 3,169 | $ 2,894
[1] | (1) Reclassification resulting from SRP transaction during the third quarter of 2014. See Note 7—Investments In and Advances to Affiliates for further information.
[2] | (2) Fair value of a tax equity partner’s right to preferential returns recognized as a result of the acquisition of Solar Power PR, LLC (Solar Puerto Rico), which was previously accounted for as an equity method investment.

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