Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Information [Line Items]
Tax benefit associated with restructuring	$ 3.4	$ 1.4	$ 1.7	$ 8.8					$ 15.3	$ 5.1	$ 7.7
Other tax benefits	0.2	0.9				3.1			1.1	2.2
Earnings before income taxes and the provision for income taxes
Earnings before income taxes - U.S.									218.8	136.2	132.3
Earnings before income taxes - Non-U.S.									761.3	733.1	628.7
Earnings before income taxes and noncontrolling interest	214.7	244.9	285.2	235.3	193.9	229.2	246.7	199.5	980.1	869.3	761.0
Current:
Federal									25.7	27.7	59.8
State									3.9	2.6	3.4
Foreign									220.8	211.1	186.1
Total current									250.4	241.4	249.3
Deferred:
Federal									66.2	(2.3)	19.6
State									(1.2)	(7.3)	(0.1)
Foreign									(22.8)	(13.5)	(30.2)
Total deferred									42.2	(23.1)	(10.7)
Provision for income taxes	$ 67.3	$ 71.9	$ 85.3	$ 68.1	$ 44.5	$ 56.3	$ 66.6	$ 50.9	$ 292.6	$ 218.3	$ 238.6
Effective tax rate									29.90%	25.10%	31.40%