XML 200 R162.htm IDEA: XBRL DOCUMENT
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Acquisitions and Dispositions (Details) - USD ($) $ in Millions |  |  |  |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 07, 2017 | Jan. 27, 2016 | Jan. 01, 2016 | Mar. 31, 2015 | Jun. 25, 2014 | Jun. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2017 | Dec. 31, 2016 | Sep. 16, 2016 | Dec. 31, 2015 | Dec. 17, 2017 | Jun. 30, 2017
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  | $ (52) | $ 29 |  | $ 29 |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  |  |  |  | 108 | 631 |  | 138 |  |
Income (Loss) from Continuing Operations Attributable to Parent |  |  |  |  |  |  |  | (507) | (20) |  | 318 |  |
Dispositions and Held-for-Sales Businesses |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Sale of Ownership Interests |  |  |  |  |  |  |  | 94 | 0 |  | 154 |  |
Masinloc Subsidiary [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Dispositions and Held-for-Sales Businesses |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  |  | $ 436 |  |  |  |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  |  |  |  |  |  | 129 | 134 |  | 133 |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Electrica Santiago (Gener ESSA) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  |  |  |  |  |  | 9 | 11 |  | 10 |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  |  |  |  | 300 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | DPL Peaking Generation [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  |  |  |  |  |  | 17 | 20 |  | 24 |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  |  |  |  | 241 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Masinloc Subsidiary [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  |  |  |  |  |  | 103 | 103 |  | 99 |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  |  |  |  | 1,000 |  |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  |  |  |  |  |  | 72 | 32 |  | 91 |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Zimmer and Miami Fort [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  |  |  |  |  |  | 26 | (14) |  | 6 |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  | 13 |  |  |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  |  |  |  | 70 |  |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Kazakhstan Hydro [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  |  |  |  |  |  | 33 | 34 |  | 52 |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  | (33) |  |  |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  |  |  |  | 75 |  |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Armenia Mountain [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  |  |  |  |  |  | 0 | 0 |  | 6 |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  | $ 22 |  |  |  |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  |  |  |  |  | $ 64 |  |  |  |  |  |
Dispositions and Held-for-Sales Businesses |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest sold |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Sale Agreement, Buyer Option To Purchase Ownership Interest, Sales Price |  |  |  | $ 75 |  |  |  |  |  |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | UK Wind Projects |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  | $ (20) |  |  |  |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Kelanitissa [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  | $ 5 |  |  |  |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  | $ 18 |  |  |  |  |  |  |  |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Kazakhstan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  |  |  |  |  |  | 13 | 12 |  | 16 |  |
Gain (Loss) on Disposition of Business | $ (49) |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates | $ 24 |  |  |  |  |  |  |  |  |  |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | DPLER [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, Attributable to Parent, before Income Tax |  |  |  |  |  |  |  | $ 0 | 0 |  | 11 |  |
Gain (Loss) on Disposition of Business |  |  | $ 49 |  |  |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses and Interests in Affiliates |  |  | $ 76 |  |  |  |  |  |  |  |  |  |
Masinloc Subsidiary [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Dispositions and Held-for-Sales Businesses |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest sold |  |  |  |  | 45.00% |  |  | 100.00% |  |  |  | 51.00% |
Divestiture of Businesses, Portion Contingent Upon Achievement of Certain Restructuring Efficiencies |  |  |  |  | $ 23 |  |  |  |  |  |  |  |
Kazakhstan Hydro [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets to be Disposed of |  |  |  |  |  |  |  | $ 92 | 0 |  | $ 0 |  |
Distributed energy [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  |  |  |  |  | $ 43 |  |  |
UK Wind Projects |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  |  | $ (20) |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Masinloc Subsidiary [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  | 475 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | DPL Peaking Generation [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets to be Disposed of |  |  |  |  |  |  |  | 109 |  |  |  |  |
Fair Value Less Costs To Sell |  |  |  |  |  |  |  | 237 |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  | 346 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Electrica Santiago (Gener ESSA) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  | 186 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Kazakhstan Hydro [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets to be Disposed of |  |  |  |  |  |  |  | $ 92 |  |  |  |  |
Fair Value Less Costs To Sell |  |  |  |  |  |  |  |  |  |  |  |  | $ 92
Assets Carrying Amount Disclosure Nonrecurring |  |  |  |  |  |  |  |  |  |  |  |  | $ 190

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