Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Change in derivative losses on cash flow hedges, taxes	$ 0.2		$ 0.8	$ 0.8		$ 1.6
Adjustments of and amortization of net actuarial loss, prior service cost, and transition obligation, taxes	(1.5)		9.1	10.6		12.2
Balance at December 31, 2012	(977.0)			(876.7)
Other comprehensive income (loss) other than reclassifications	23.4			(107.7)
Derivative losses on cash flow hedges, net of tax	0.3	[1]	1.0	1.4	[1]	2.9
Amortization of and amortization of net actuarial loss, prior service cost, and transition obligation, net of tax	(6.0)	[2]	15.4	23.7	[2]	25.0
Total reclassifications into earnings	(5.7)			25.1
Balance at September 30, 2013	(959.3)			(959.3)
Pension and Postretirement Plans [Member]
Balance at December 31, 2012	(518.3)			(548.0)
Other comprehensive income (loss) other than reclassifications	0			0
Derivative losses on cash flow hedges, net of tax	0			0
Amortization of and amortization of net actuarial loss, prior service cost, and transition obligation, net of tax	(6.0)	[2]		23.7	[2]
Total reclassifications into earnings	(6.0)			23.7
Balance at September 30, 2013	(524.3)			(524.3)
Net Investment Hedging [Member]
Balance at December 31, 2012	(4.3)			(4.3)
Other comprehensive income (loss) other than reclassifications	0			0
Derivative losses on cash flow hedges, net of tax	0			0
Amortization of and amortization of net actuarial loss, prior service cost, and transition obligation, net of tax	0			0
Total reclassifications into earnings	0			0
Balance at September 30, 2013	(4.3)			(4.3)
Cash Flow Hedge [Member]
Balance at December 31, 2012	(5.7)			(6.8)
Other comprehensive income (loss) other than reclassifications	0			0
Derivative losses on cash flow hedges, net of tax	0.3	[1]		1.4	[1]
Amortization of and amortization of net actuarial loss, prior service cost, and transition obligation, net of tax	0			0
Total reclassifications into earnings	0.3			1.4
Balance at September 30, 2013	(5.4)			(5.4)
Foreign Currency Gain (Loss) [Member]
Balance at December 31, 2012	(448.7)			(317.6)
Other comprehensive income (loss) other than reclassifications	23.4			(107.7)
Derivative losses on cash flow hedges, net of tax	0			0
Amortization of and amortization of net actuarial loss, prior service cost, and transition obligation, net of tax	0			0
Total reclassifications into earnings	0			0
Balance at September 30, 2013	$ (425.3)			$ (425.3)

[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.