Employee Benefits (Details 3) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
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Dec. 31, 2012
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Effects created by one percentage point change in assumed healthcare cost trend | |
Effect of 1% point increase on postretirement obligation | $ 4 |
Effect of 1% point decrease on postretirement obligation | $ (4) |
X | ||||||||||
- Details
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X | ||||||||||
- Definition
Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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