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Derivative Instruments and Hedging Activities (Details) - Derivatives designated as hedging instruments - Cash flow hedges - Interest Rate Swaps - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2012 | Mar. 31, 2017 | Dec. 31, 2012
3 month LIBOR interest rate swap, cash flow hedge terminated March 2012 |  |  |
Interest Rate Swap Agreements |  |  |
Debt issued |  |  | $ 400,000,000
Loss on termination of swaps being amortized | $ 23,000,000 |  |
Other, net | 3 month LIBOR interest rate swap, cash flow hedge terminated March 2012 |  |  |
Interest Rate Swap Agreements |  |  |
Ineffective portion of the cash flow hedges |  |  | $ 2,000,000
Three Month London Interbank Offered Rate |  |  |
Interest Rate Swap Agreements |  |  |
Unrealized gain (loss) on interest rate cash flow hedges, AOCI |  | $ (12,000,000) |

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- Definition The effective portion of losses on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580 + Details
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- Definition The net gain (loss) recognized in earnings during the reporting period representing the amount of the cash flow hedges' ineffectiveness. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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