CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 524.6	$ 268.2
Other comprehensive income (loss):
Foreign currency translation gain (loss)	0.7	(1.2)
Postretirement benefit plan adjustments, net of tax	(0.1)
Total other comprehensive income (loss)	0.6	(1.2)
Comprehensive income	525.2	267.0
Less: comprehensive income attributable to noncontrolling interests	1.3	1.3
Comprehensive income attributable to Reliance	$ 523.9	$ 265.7