Consolidated Statements of Stockholders' Deficit (Parenthetical) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Stockholders' Equity [Abstract]
Dividends	$ 1.10	$ 1.06	$ 3.26	$ 3.04
Pension and post-retirement liability changes, tax expense	0.0	200,000	0.0	700,000
Change in cash flow hedges, tax expense	$ 800,000	$ 1,200,000	$ 1,200,000	$ 7,300,000