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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME    
Net income and comprehensive income $ 787.8 $ 767.1
-Derivative instruments classified as cash flow hedge:    
Unrealized gain (loss) of the period (net of income tax of $0.2 million in 2022) (0.6)  
Total other comprehensive income (loss) (0.6)  
Total comprehensive income 787.2 767.1
Comprehensive income attributable to the non-controlling interest 3.1 3.3
Comprehensive income attributable to SCC $ 784.1 $ 763.8