CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 1,844.2	$ 1,417.4	$ 372.4
Other comprehensive (loss) income:
Foreign currency translation (loss) gain	(28.8)	(2.5)	11.7
Pension and postretirement benefit adjustments, net of tax	11.4	11.5	15.5
Total other comprehensive (loss) income	(17.4)	9.0	27.2
Comprehensive income	1,826.8	1,426.4	399.6
Less: comprehensive income attributable to noncontrolling interests	4.1	4.4	3.3
Comprehensive income attributable to Reliance	$ 1,822.7	$ 1,422.0	$ 396.3