Accumulated Other Comprehensive Loss (Components of Comprehensive Loss) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Balance at Period Start			$ 4.3
Balance at Period Start	(870.4)		(876.7)
Other comprehensive loss other than reclassifications	(434.9)		(31.1)
Reclassifications into earnings
Change in derivative losses on cash flow hedges, net of taxes	1.9	[1]	1.7	[1]	3.9
Amortization of net actuarial loss and prior service cost, net of taxes	85.8		35.7		33.9
Total reclassifications into earnings	87.7		37.4
Balance at Period End					4.3
Balance at Period End	(1,217.6)		(870.4)		(876.7)
Change in derivative losses on cash flow hedges, taxes	0		0.9		2.1
Adjustments of and amortization of net actuarial loss and prior service costs, taxes	2.5		16.5
Foreign Currency Gain (Loss) [Member]
Balance at Period Start	(429.3)		(317.6)
Other comprehensive loss other than reclassifications	(247.7)		(111.7)
Reclassifications into earnings
Change in derivative losses on cash flow hedges, net of taxes	0		0
Amortization of net actuarial loss and prior service cost, net of taxes	0		0
Total reclassifications into earnings	0		0
Balance at Period End	(677.0)		(429.3)
Cash Flow Hedging [Member]
Balance at Period Start	(5.1)		(6.8)
Other comprehensive loss other than reclassifications	0		0
Reclassifications into earnings
Change in derivative losses on cash flow hedges, net of taxes	1.9	[1]	1.7	[1]
Amortization of net actuarial loss and prior service cost, net of taxes	0		0
Total reclassifications into earnings	1.9		1.7
Balance at Period End	(3.2)		(5.1)
Net Investment Hedging [Member]
Balance at Period Start	(4.3)		(4.3)
Other comprehensive loss other than reclassifications	0		0
Reclassifications into earnings
Change in derivative losses on cash flow hedges, net of taxes	0		0
Amortization of net actuarial loss and prior service cost, net of taxes	0		0
Total reclassifications into earnings	0		0
Balance at Period End	(4.3)		(4.3)
Defined Benefit Plans [Domain]
Balance at Period Start	(431.7)		(548.0)
Other comprehensive loss other than reclassifications	(187.2)	[2]	80.6	[2]
Reclassifications into earnings
Change in derivative losses on cash flow hedges, net of taxes	0		0
Amortization of net actuarial loss and prior service cost, net of taxes	85.8		35.7
Total reclassifications into earnings	85.8		35.7
Balance at Period End	$ (533.1)		$ (431.7)

[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 and administrative expenses, and related taxes reclassified to income taxes.