v3.22.2.2
Consolidated Statements of Comprehensive Income (unaudited) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Statement of Comprehensive Income [Abstract]        
Net income $ 7.3 $ 879.8 $ 208.5 $ 1,240.9
Other comprehensive (loss) income:        
Change in unrealized gains on securities, net of taxes of $50.5,$184.4, $213.3 and $220.8 for the three and nine months ended September 30, 2022 and 2021, respectively (209.3) (663.1) (836.0) (786.2)
Change in unrealized gains on derivative transactions, net of taxes of $0.1, $0.2, $0.5 and $0.6 for each of the three and nine months ended September 30, 2022 and 2021, respectively (0.6) (0.6) (1.9) (1.8)
Change in foreign currency translation, net of taxes of $0.1, $1.1, $(2.5) and $1.3 for the three and nine months ended September 30, 2022 and 2021, respectively (51.4) (23.7) (92.0) (2.9)
Change in pension and postretirement unrecognized net periodic benefit cost, net of taxes of $0.4, $0.2, $1.3 and $0.9 for the three and nine months ended September 30, 2022 and 2021, respectively (1.4) (0.7) (5.0) (3.0)
Total other comprehensive loss (262.7) (688.1) (934.9) (793.9)
Total comprehensive (loss) income (255.4) 191.7 (726.4) 447.0
Total comprehensive (loss) income attributable to stockholders $ (255.4) $ 191.7 $ (726.4) $ 447.0