Consolidated Statements of Stockholders' Deficit (Parenthetical) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Stockholders' Equity [Abstract]
Dividends	$ 1.10	$ 1.06	$ 2.16	$ 1.98
Pension and post-retirement liability changes, tax expense	0.0	200,000	0.0	600,000
Change in cash flow hedges, tax expense	$ 1,400,000	$ 9,200,000	$ 400,000	$ 6,200,000