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uefalsefalse-59000000-59falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryDefined benefit plan assumed return on plan assetsNo authoritative reference available.falsefalse26false0us-gaap_De
finedBenefitPlanAmortizationOfGainsLossesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse70000007falsefalsefalsefalsefalse2truefalsefalse60000006falsefalsefalsefalsefalse3truefalsefalse40000004falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of gains or losses recognized in net periodic benefit costReference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
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falsefalse27false0us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse70000007falsefalsefalsefalsefalse2truefalsefalse80000008falsefalsefalsefalsefalse3truefalsefalse1000000010falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain or loss, prior service cost or credit, transition asset or obligation, and gain or loss due to settlements or curtailments).
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 88
-Paragraph 6
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
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falsefalse30false0us-gaap_DefinedBenefitPlanSpecialTerminationBenefitsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00 falsefalsefalsefalsefalse3falsefalsefalse00 falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of increase related to special termination benefits offered to and accepted by employees in connection with their termination of employment that are only offered for a short period of time. A situation involving termination benefits may also involve a curtailment.Reference 1: http://www.xbrl.org/2
003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 88
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falsefalse31false0stt_DefinedBenefitPlanTotalExpensessttfalsedebitdurationDefined Benefit Plan Total Expensesfalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefa
lsefalse70000007falsefalsefalsefalsefalse2truefalsefalse60000006falsefalsefalsefalsefalse3truefalsefalse1000000010falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryDefined Benefit Plan Total ExpensesNo authoritative reference available.falsefalse32false0us-gaap_DefinedBenefitPlanAmortizationOfNetGainsLossesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse-13000000-13fals
efalsefalsefalsefalse2truefalsefalse-7000000-7falsefalsefalsefalsefalse3truefalsefalse-6000000-6falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
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-Subparagraph s
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7
-Subparagraph d
falsefalse33false0stt_EstimatedAmortizationsttfalsedebitdurationEstimated Amortizationfalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse-13000000-13falsetruefalsefalsefalse2truefalsefalse-7000000-7falsetruefalsefalsefalse3truefalsefa
lse-6000000-6falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryEstimated AmortizationNo authoritative reference available.falsefalse333Employee Benefits (The Actuarially Determined Expense for Our U.S. And Non-U.S. Defined Benefit Plans, Post-r
etirement Plan and SERPs ) (Details) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue
