XML 14 R3.htm IDEA: XBRL DOCUMENT v3.21.1
Statements of Consolidated Comprehensive Income (Loss) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Net Income $ 296.5 $ 75.6
Other comprehensive income (loss):    
Net unrealized loss on available-for-sale securities [1] (2.5) (5.4)
Net unrealized gain (loss) on cash flow hedges [2] 84.6 (133.3)
Unrecognized pension and OPEB benefit (costs) [3] (0.9) 0.7
Total other comprehensive income (loss) 81.2 (138.0)
Comprehensive Income (Loss) $ 377.7 $ (62.4)
[1] Net unrealized loss on available-for-sale debt securities, net of $0.7 million and $1.4 million tax benefit in the first quarter of 2021 and 2020, respectively.
[2] Net unrealized gain (loss) on cash flow hedges, net of $28.0 million tax expense and $44.1 million tax benefit in the first quarter of 2021 and 2020, respectively.
[3] Unrecognized pension and OPEB benefit (costs), net of $0.9 million tax expense and $0.3 million tax benefit in the first quarter of 2021 and 2020, respectively.