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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Statement of Comprehensive Income [Abstract]      
Net income $ 1,503.1 $ 823.4 $ 1,046.9
Other comprehensive income (loss), net of tax (Note 15):      
Foreign currency translation adjustments (50.1) 32.4 (11.2)
Unrealized gain (loss) on hedges 57.4 (40.2) (11.1)
Unrealized pension credits (costs) 11.6 (4.2) (1.9)
Unrealized (loss) gain on available-for-sale investments (24.1) 6.6 6.3
Reclassification of net realized investment loss to earnings 8.6 0.3 0.4
Other comprehensive income (loss), net of tax 3.4 (5.1) (17.5)
Comprehensive income $ 1,506.5 $ 818.3 $ 1,029.4