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Property Plant and Equipment | 12 Months Ended
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Dec. 31, 2013
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT & EQUIPMENT | PROPERTY, PLANT AND EQUIPMENT The following table summarizes the components of the electric generation and distribution assets and other property, plant and equipment with their estimated useful lives. The amounts are stated net of impairment losses recognized as further discussed in Note 21—Asset Impairment Expense.
|  | Estimated Useful Life |  | December 31,
|  | 2013 |  | 2012
|  | (in years) |  | (in millions)
Electric generation and distribution facilities |  | 6 - 68 |  | $ | 27,619 |  |  | $ | 26,385 |
Other buildings |  | 5 - 50 |  | 1,726 |  |  | 2,616 |
Furniture, fixtures and equipment |  | 3 - 30 |  | 312 |  |  | 386 |
Other |  | 1 - 46 |  | 939 |  |  | 891 |
Total electric generation and distribution assets and other |  |  |  | 30,596 |  |  | 30,278 |
Accumulated depreciation |  |  |  | (9,604 | ) |  | (9,145 | )
Net electric generation and distribution assets and other(1)(2) |  |  |  | $ | 20,992 |  |  | $ | 21,133 |
(1) | Net electric generation and distribution assets and other related to the Company's held-for-sale businesses of $1.2 billion and $1.3 billion as of December 31, 2013 and 2012, respectively, were excluded from the table above and were included in the noncurrent assets of discontinued and held-for-sale businesses in the consolidated balance sheets.
(2) | Net electric generation and distribution assets, and other include unamortized internal use software costs of $133 million and $141 million as of December 31, 2013 and 2012, respectively.
The following table summarizes depreciation expense (including the amortization of assets recorded under capital leases), amortization of internal use software and interest capitalized during development and construction on qualifying assets for the years ended December 31, 2013, 2012 and 2011:
|  | 2013 |  | 2012 |  | 2011
|  | (in millions)
Depreciation expense (including amortization of assets recorded under capital leases) |  | $ | 1,193 |  |  | $ | 1,173 |  |  | $ | 1,078 |
Amortization of internal use software |  | 36 |  |  | 45 |  |  | 42 |
Interest capitalized during development and construction |  | 84 |  |  | 88 |  |  | 155 |
Property, plant and equipment, net of accumulated depreciation, of $15 billion and $16 billion was mortgaged, pledged or subject to liens as of December 31, 2013 and 2012, respectively. The following table summarizes regulated and non-regulated generation and distribution property, plant and equipment and accumulated depreciation as of December 31, 2013 and 2012:
|  | December 31,
|  | 2013 |  | 2012
|  | (in millions)
Regulated assets |  | $ | 13,031 |  |  | $ | 13,395 |
Regulated accumulated depreciation |  | (4,732 | ) |  | (4,711 | )
Regulated generation, distribution assets and other, net |  | 8,299 |  |  | 8,684 |
Non-regulated assets |  | 17,565 |  |  | 16,883 |
Non-regulated accumulated depreciation |  | (4,872 | ) |  | (4,434 | )
Non-regulated generation, distribution assets and other, net |  | 12,693 |  |  | 12,449 |
Net electric generation and distribution assets and other |  | $ | 20,992 |  |  | $ | 21,133 |
The following table summarizes the amounts recognized, which were related to asset retirement obligations, for the years ended December 31, 2013 and 2012:
|  | 2013 |  | 2012
|  | (in millions)
Balance at January 1 |  | $ | 120 |  |  | $ | 110 |
Additional liabilities incurred |  | 1 |  |  | 3 |
Liabilities settled |  | (4 | ) |  | (3 | )
Accretion expense |  | 9 |  |  | 6 |
Change in estimated cash flows |  | 16 |  |  | 3 |
Translation adjustments |  | — |  |  | 1 |
Balance at December 31 |  | $ | 142 |  |  | $ | 120 |
The Company’s asset retirement obligations covered by the relevant guidance primarily include active ash landfills, water treatment basins and the removal or dismantlement of certain plants and equipment. There were no legally restricted assets for purposes of settling asset retirement obligations for the years ended December 31, 2013 and 2012. Ownership of Coal-Fired Facilities DP&L has undivided ownership interests in seven coal-fired generation facilities jointly owned with other utilities. As of December 31, 2013, DP&L had $24 million of construction work in process at such facilities. DP&L’s share of the operating costs of such facilities is included in Cost of Sales in the Consolidated Statement of Operations and its share of investment in the facilities is included in Property, Plant and Equipment in the Consolidated Balance Sheet. DP&L’s undivided ownership interest in such facilities at December 31, 2013 is as follows:
|  | DP&L Share |  | DP&L Investment
|  | Ownership |  | Production Capacity (MW) |  | Gross Plant In Service |  | Accumulated Depreciation |  | Construction Work In Process
|  |  |  |  |  | ($ in millions)
Production units: |  |  |  |  |  |  |  |  |  |
Beckjord Unit 6 |  | 50 | % |  | 207 |  |  | $ | 2 |  |  | $ | 1 |  |  | $ | — |
Conesville Unit 4 |  | 17 | % |  | 129 |  |  | 24 |  |  | — |  |  | — |
East Bend Station |  | 31 | % |  | 186 |  |  | 12 |  |  | 5 |  |  | — |
Killen Station |  | 67 | % |  | 402 |  |  | 306 |  |  | 9 |  |  | 4 |
Miami Fort Units 7 and 8 |  | 36 | % |  | 368 |  |  | 212 |  |  | 13 |  |  | 1 |
Stuart Station |  | 35 | % |  | 808 |  |  | 205 |  |  | 12 |  |  | 16 |
Zimmer Station |  | 28 | % |  | 365 |  |  | 177 |  |  | 25 |  |  | 3 |
Transmission |  | various |  |  | — |  |  | 41 |  |  | 4 |  |  | — |
Total |  |  |  | 2,465 |  |  | $ | 979 |  |  | $ | 69 |  |  | $ | 24 |

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13-14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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