Casualty, Environmental and Other Reserves - Narrative (Details)			9 Months Ended
	Jun. 01, 2021 USD ($)	May 31, 2021 USD ($)	Sep. 30, 2022 USD ($) claim site	Jun. 01, 2022 USD ($)	Dec. 31, 2021 USD ($)
All Contingencies Reserves [Line Items]
Total reserves			$ 430,000,000		$ 368,000,000
Pan-Am
All Contingencies Reserves [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities				$ 173,000,000
Casualty
All Contingencies Reserves [Line Items]
Total reserves			190,000,000		180,000,000
Self-insured retention amount, per occurrence	$ 100,000,000	$ 75,000,000	$ 100,000,000
Number of individual claims expected to exceed self insured retention amount | claim			0
Environmental
All Contingencies Reserves [Line Items]
Total reserves			$ 156,000,000		108,000,000
Environmental impaired sites | site			230
Environmental | Pan-Am
All Contingencies Reserves [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities			$ 32,000,000
Other
All Contingencies Reserves [Line Items]
Total reserves			$ 84,000,000		$ 80,000,000