v2.4.0.6

Retirement Benefits Plans Retirement Benefits Plans - Fair Value of Other Postretirement Benefits Plan Assets (Details 12) (USD $) In Millions, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Fair Value of Other Postretirement Benefits Plan Assets [Line Items] |  |
Global securities | $ 75 | $ 52
Fixed income securities | 67 | 50
Cash equivalents | 5 | 54
Total other postretirement benefit plan assets | 147 | 156
Quoted prices in active markets for identical assets (Level 1) [Member] |  |
Fair Value of Other Postretirement Benefits Plan Assets [Line Items] |  |
Global securities | 0 | 0
Fixed income securities | 0 | 0
Cash equivalents | 5 | 54
Total other postretirement benefit plan assets | 5 | 54
Other observable inputs (Level 2) [Member] |  |
Fair Value of Other Postretirement Benefits Plan Assets [Line Items] |  |
Global securities | 75 | 52
Fixed income securities | 67 | 50
Cash equivalents | 0 | 0
Total other postretirement benefit plan assets | 142 | 102
Unobservable inputs (Level 3) [Member] |  |
Fair Value of Other Postretirement Benefits Plan Assets [Line Items] |  |
Global securities | 0 | 0
Fixed income securities | 0 | 0
Cash equivalents | 0 | 0
Total other postretirement benefit plan assets | $ 0 | $ 0

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- Definition Cash Equivalents Fair Value of Postretirement Benefits Plan Assets + References No definition available. + Details
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- Definition Fair Value of Other Postretirement Benefits Plan Assets + References No definition available. + Details
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- Details
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- Definition Fixed Income Securities Fair Value of Other Postretirement Benefits Plans + References No definition available. + Details
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- Definition Global Securities Fair Value of other postretirement benefits + References No definition available. + Details
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