Pension and Postretirement Benefits - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash contributions, postretirement benefits	$ 31.1	$ 25.1
Pension Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated cash contributions by the company for current fiscal year	41.0
Cash contributions, pension plans	28.4	23.3	$ 39.3
Postretirement Benefit Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated cash contributions by the company for current fiscal year	4.0
Cash contributions, postretirement benefits	$ 2.7	$ 1.8	$ 4.3