v2.4.0.8

Commitments and Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Commitments and Contingencies [Line Items] |  |  |
Guarantor Obligations, Current Carrying Value | $ 4 |  |
Outstanding claims related to guarantees | 0 |  |
Royalty Expense | 27 | 22 | 22
LTSA [Member] |  |  |
Unrecorded Unconditional Purchase Obligation |  |  |
Unrecorded Unconditional Purchase Obligation | 134 |  |
Term of Unrecorded Unconditional Purchase Obligation Lower Limit | P1Y |  |
Term of Unrecorded Unconditional Purchase Obligation Upper Limit | P12Y |  |
Electric Generation Equipment [Member] |  |  |
Commitments and Contingencies [Line Items] |  |  |
Operating Leases, Rent Expense, Net | 47 | 51 | 53
Office Equipment [Member] |  |  |
Commitments and Contingencies [Line Items] |  |  |
Operating Leases, Rent Expense, Net | $ 12 | $ 12 | $ 13

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- Definition Outstanding claims related to guarantees + References No definition available. + Details
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- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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- Definition Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308 + Details
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