Casualty, Environmental and Other Reserves - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2026 USD ($) claim site
Casualty
All Contingencies Reserves [Line Items]
Self-insured retention amount per injury | $	$ 100
Individual claims expected to exceed self-insured retention amount | claim	0
Environmental
All Contingencies Reserves [Line Items]
Environmental impaired sites | site	200