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USD ($) / shares
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USD ($)
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12/31/2010
USD ($)
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12/31/2009
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12/31/2009
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12/31/2009
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-Number 106
-Paragraph 518
falsefalse28false0us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse21390000002139falsetruefalsefalsefalse2truefalsefalse20590000002059falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe pretax total of net (gain) loss, prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph i
falsefalse1Fair value of assets less benefit obligation shown on the preceding page. 227Pension and Other Postretirement Benefits (Assets Recorded in Balance Sheet and Other Comprehensive Income) (Details) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue
