Other Comprehensive Income (Loss) (Tax Effect) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Benefit (expense) for income taxes allocated to other comprehensive income (loss) items	$ (169.2)	$ (71.8)	$ (375.1)	$ (206.1)
Foreign Currency Translation Gains (Losses)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Benefit (expense) for income taxes allocated to other comprehensive income (loss) items	(133.3)	(39.0)	(234.2)	(92.3)
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	3.4	0.8	13.1	3.8
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)	(28.2)	(73.2)	(79.7)
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	$ (16.9)	$ (5.4)	$ (80.8)	$ (37.9)