CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
		Sep. 30, 2022	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Pension and postretirement adjustments, tax benefit (expense)	[1]	$ 1.2	$ 3.1

[1] The tax expense/(benefit) included in pension and postretirement adjustments for the three and nine months ended September 30, 2023 were immaterial. The tax expense included in pension and postretirement adjustments for the three and nine months ended September 30, 2022 was $1.2 million and $3.1 million, respectively.