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Pensions And Other Postretirement Benefits (Change Of One Percentage Point In Assumed Health Care Cost Trend Rates) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
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Dec. 31, 2011
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| Pensions And Other Postretirement Benefits [Abstract] | |
| Effect on total of service and interest cost due to one percentage point increase | $ 5.7 |
| Effect on postretirement benefit obligation due to one percentage point increase | 60.0 |
| Effect on total of service and interest cost due to one percentage point decrease | (4.4) |
| Effect on postretirement benefit obligation due to one percentage point decrease | $ (48.3) |
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- Definition
The 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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- Definition
The effect of a one-percentage- point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- 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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| X | ||||||||||
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- Definition
The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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