CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 386.3	$ 573.9	$ 770.7	$ 1,098.5
Other comprehensive income (loss):
Foreign currency translation gain (loss)	0.7	(20.0)	1.2	(19.3)
Postretirement benefit plan adjustments, net of tax	(0.8)		(1.5)	(0.1)
Total other comprehensive loss	(0.1)	(20.0)	(0.3)	(19.4)
Comprehensive income	386.2	553.9	770.4	1,079.1
Less: comprehensive income attributable to noncontrolling interests	1.2	1.1	2.5	2.4
Comprehensive income attributable to Reliance	$ 385.0	$ 552.8	$ 767.9	$ 1,076.7