Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Line Items]
Effective tax rate	28.90%	33.80%	18.70%
Income tax benefit from exercise of stock options and/or vesting of RSUs and DSUs	$ 10.6	$ 9.2	$ 8.7
Increase/(decrease) in effective tax rate	(4.90%)	15.10%
Undistributed earnings of non-U.S. subsidiaries	1,623.3
Amount of unrecognized tax benefits that would affect the effective tax rate if recognized	23.5	24.2	23.1
Accrued interest and penalties associated with uncertain tax positions	1.7	1.7	2.4
Net (expense) benefit for interest and penalties associated with uncertain tax positions	(0.1)	0.7	0.5
Estimated decrease in unrecognized tax benefits, lower bound	0
Cash paid for income taxes	60.8	(1.4)	93.3
Estimated decrease in unrecognized tax benefits, upper bound	7.0
Provision for income taxes	106.6	54.8	63.2
Foreign Carryforwards With No Expiration Date [Member]
Income Taxes [Line Items]
Operating loss carryforwards	6.0
Foreign [Member]
Income Taxes [Line Items]
Operating loss carryforwards	30.4
Federal [Member]
Income Taxes [Line Items]
Operating loss carryforwards	2.5
Tax credit carryforward amount	2.3
State [Member]
Income Taxes [Line Items]
Operating loss carryforwards	28.2
Tax credit carryforward amount	8.0
Tax credit carryforward valuation allowance	1.1
Restricted Stock Units Deferred Stock Units And Stock Options [Member]
Income Taxes [Line Items]
Income tax benefit from exercise of stock options and/or vesting of RSUs and DSUs	$ 7.0	$ 2.7	$ 2.8