|
Pensions And Other Postretirement Benefits (Net Funded Status) (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|---|---|---|---|
|
Pension Benefits [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | $ 744.1 | $ 734.3 | $ 483.4 |
| Benefit obligations | (1,141.4) | (1,022.3) | (750.8) |
| Funded status (plan assets less benefit obligations) | (397.3) | (288.0) | |
| Amount recognized | (397.3) | (288.0) | |
|
Other Benefits [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Fair value of plan assets | 193.5 | 174.2 | 136.7 |
| Benefit obligations | (488.4) | (440.2) | (333.0) |
| Funded status (plan assets less benefit obligations) | (294.9) | (266.0) | |
| Amount recognized | $ (294.9) | $ (266.0) |
| X | ||||||||||
|
- Definition
The aggregate net amount recognized in the balance sheet associated with the defined benefit plan(s). Will normally be the same as the Defined Benefit Plan, Funded Status of Plan, Total. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|