Employee Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Savings plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum Qualifying Age For Employee Benefit Plan	21 years
Employee Benefit Plans (Textual) [Abstract]
Expenses related to savings plan	$ 51.8	$ 49.3	$ 39.3
Deferred compensation plan [Member]
Employee Benefit Plans (Textual) [Abstract]
Deferred compensation related to Employee Benefit Plan	$ 126.9	$ 105.2
Swiss plan [Member]
Employee Benefit Plans (Textual) [Abstract]
Percentage of minimum investment return	1.75%	1.75%	1.50%
Unfunded net pension	$ 42.4	$ 31.9
Employee Benefit Plan obligations	63.9	43.9
Pension Expense	12.9	9.8	$ 10.9
German plan [Member]
Employee Benefit Plans (Textual) [Abstract]
Employee Benefit Plan obligations	27.6	24.8
Periodic pension cost	$ 4.0	$ 3.5	$ 3.3