Other Comprehensive Income (Loss) (Tax Effect) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Benefit (expense) for income taxes allocated to other comprehensive income (loss) items	$ (140.6)	$ (7.9)	$ (205.9)	$ (134.3)
Foreign Currency Translation Gains (Losses)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Benefit (expense) for income taxes allocated to other comprehensive income (loss) items	(87.2)	(21.9)	(100.9)	(53.3)
Unrealized net gains/losses on securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Benefit (expense) for income taxes allocated to other comprehensive income (loss) items	3.0	(1.3)	9.7	3.1
Defined Benefit Pension and Retiree Health Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Benefit (expense) for income taxes allocated to other comprehensive income (loss) items	(22.4)	(20.2)	(50.8)	(51.5)
Effective portion of cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Benefit (expense) for income taxes allocated to other comprehensive income (loss) items	$ (34.0)	$ 35.5	$ (63.9)	$ (32.6)