Financial Instruments and Risk Management (Effect of Derivative Instruments on the Consolidated Statements of Comprehensive Earnings Derivatives in Cash Flow Hedging Relationships) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Foreign Exchange Contract | Cash flow hedging relationships | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain Excluded from the Assessment of Hedge Effectiveness	$ 0.0	$ 7.1	$ 0.0