Annual report pursuant to Section 13 and 15(d)

Postretirement Benefits Contributions, Benefit Payments and Other (Details)

v3.22.0.1
Postretirement Benefits Contributions, Benefit Payments and Other (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Pension Plans [Member]  
Expected Benefit Payments [Abstract]  
Company Contributions Expected to be Made in 2017 $ 2.8
2019 2.8
2020 2.8
2021 2.4
2022 2.3
2023 2.1
2024-2028 8.4
Other Postretirement Benefit Plans [Member]  
Expected Benefit Payments [Abstract]  
Company Contributions Expected to be Made in 2017 2.9
2019 2.9
2020 2.8
2021 2.6
2022 2.5
2023 2.3
2024-2028 $ 9.6