Financial Instruments and Risk Management (Effect of Derivative Instruments on the Condensed Consolidated Statements of Comprehensive Earnings Derivatives in Net Investment Hedging Relationship) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Financial Instruments in Net Investment Hedging Relationships:	$ 479.0	$ (325.8)	$ 76.3
Foreign currency borrowings and forward contracts | Cash Flow Hedging [Mem
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Financial Instruments in Cash Flow Hedging Relationships (2) :	45.8	20.6	16.6
Interest rate swaps | Cash Flow Hedging [Mem
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Financial Instruments in Cash Flow Hedging Relationships (2) :	(3.4)	0.0	3.0
Gains and Losses on Derivatives in Cash Flow Hedging Relationships | Foreign currency borrowings and forward contracts | Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	$ 436.6	$ (346.4)	$ 56.7