Consolidated Statements of Comprehensive Earnings - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net loss	$ 2,078.6	$ (1,269.1)	$ (669.9)
Other comprehensive (loss) earnings, before tax:
Foreign currency translation adjustment	(1,583.5)	(1,340.9)	1,213.0
Change in unrecognized gain (loss) and prior service cost related to defined benefit plans	279.1	73.9	(14.0)
Net unrealized (loss) gain on marketable securities	(2.8)	(1.1)	0.6
Other comprehensive (loss) earnings, before tax	(884.0)	(775.2)	912.6
Income tax provision (benefit)	132.9	111.1	(26.6)
Other comprehensive (loss) earnings, net of tax	(1,016.9)	(886.3)	939.2
Comprehensive earnings	1,061.7	(2,155.4)	269.3
Cash flow hedging relationships
Other comprehensive (loss) earnings, before tax:
Net unrecognized gain (loss) on derivatives in hedging relationships	(36.9)	36.1	18.2
Net Investment Hedging
Other comprehensive (loss) earnings, before tax:
Net unrecognized gain (loss) on derivatives in hedging relationships	$ 460.1	$ 456.8	$ (305.2)