Annual report pursuant to Section 13 and 15(d)

Pensions And Other Postretirement Benefits (Components Of Net Periodic Benefit Cost) (Details)

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Pensions And Other Postretirement Benefits (Components Of Net Periodic Benefit Cost) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Pension Benefits [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 23.6 $ 18.5 $ 14.3
Interest cost 51.4 52.9 42.6
Expected return on plan assets (61.2) (53.3) (37.1)
Prior service costs (credits) 4.4 4.4 4.2
Net actuarial loss 19.6 23.1 26.8
Net periodic benefit cost 37.8 45.6 50.8
Acquired through business combinations   17.7  
Current year actuarial (gain)/loss 165.3 (3.1) 12.1
Amortization of net loss (19.6) (23.1) (26.8)
Current year prior service cost   3.7 3.0
Amortization of prior service (cost) credit (4.4) (4.4) (4.2)
Total recognized in other comprehensive income 141.3 (9.2) (15.9)
Total recognized in net periodic cost and other comprehensive income 179.1 36.4 34.9
Other Benefits [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 11.1 7.5 5.4
Interest cost 22.3 22.0 18.9
Expected return on plan assets (16.1) (12.9) (9.1)
Net asset (3.0) (3.0) (3.0)
Prior service costs (credits) 3.7 1.7 1.8
Net actuarial loss 8.8 8.9 11.5
Net periodic benefit cost 26.8 24.2 25.5
Acquired through business combinations   2.4  
Current year actuarial (gain)/loss 46.8 34.6 2.2
Amortization of net loss (8.8) (8.9) (11.5)
Amortization of prior service (cost) credit (3.7) (1.7) (1.8)
Amortization of transition asset 3.0 3.0 3.0
Total recognized in other comprehensive income 37.3 29.4 (8.1)
Total recognized in net periodic cost and other comprehensive income $ 64.1 $ 53.6 $ 17.4