Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Change in derivative losses on cash flow hedges, taxes	$ 0.4		$ 0.5
Adjustments of and amortization of net actuarial loss, prior service costs, and transition obligation, taxes	5.0		4.4
Balance at December 31, 2012	(876.7)
Other comprehensive loss other than reclassifications	(23.4)
Derivative losses on cash flow hedges, net of tax	0.8	[1]	1.0
Amortization of net actuarial loss, prior service cost, and transition obligation, net of tax	10.1	[2]	9.3
Total reclassification into earnings	10.9
Balance at March 31, 2013	(889.2)
Pension and Postretirement Plans [Member]
Balance at December 31, 2012	(548.0)
Other comprehensive loss other than reclassifications	0
Derivative losses on cash flow hedges, net of tax	0
Amortization of net actuarial loss, prior service cost, and transition obligation, net of tax	10.1	[2]
Total reclassification into earnings	10.1
Balance at March 31, 2013	(537.9)
Net Investment Hedging [Member]
Balance at December 31, 2012	(4.3)
Other comprehensive loss other than reclassifications	0
Derivative losses on cash flow hedges, net of tax	0
Amortization of net actuarial loss, prior service cost, and transition obligation, net of tax	0
Total reclassification into earnings	0
Balance at March 31, 2013	(4.3)
Cash Flow Hedge [Member]
Balance at December 31, 2012	(6.8)
Other comprehensive loss other than reclassifications	0
Derivative losses on cash flow hedges, net of tax	0.8	[1]
Amortization of net actuarial loss, prior service cost, and transition obligation, net of tax	0
Total reclassification into earnings	0.8
Balance at March 31, 2013	(6.0)
Foreign Currency Gain (Loss) [Member]
Balance at December 31, 2012	(317.6)
Other comprehensive loss other than reclassifications	(23.4)
Derivative losses on cash flow hedges, net of tax	0
Amortization of net actuarial loss, prior service cost, and transition obligation, net of tax	0
Total reclassification into earnings	0
Balance at March 31, 2013	$ (341.0)

[1] Gross amount reclassified to interest expense, and related taxes reclassified to income taxes.

[2] Gross amount reclassified to pension and postretirement expense, within selling, general & administrative expenses, and related taxes reclassified to income taxes.