XML 65 R54.htm IDEA: XBRL DOCUMENT v3.25.1
Commitments and Contingencies - Schedule of Environmental Matters and Legal Proceedings (Details) - Eastern Ohio Incident - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Loss Contingency Accrual [Roll Forward]    
Loss contingency accrual, beginning balance $ 688 $ 464
Loss contingency receivable, beginning balance   0
Loss contingency accrual net of recoveries, beginning balance 670 464
Loss contingency recognized 39 700
Loss contingency accrual payments (64) (127)
Loss contingency, receivable, additions (224) (108)
Loss contingency, receivable, proceeds 122 10
Loss contingency accrual provision net of recoveries (185) 592
Loss contingency accrual payments net of recoveries 58 (117)
Loss contingency accrual, ending balance 663 1,037
Loss contingency receivable, ending balance (120) (98)
Loss contingency accrual net of recoveries, ending balance 543 939
Environmental    
Loss Contingency Accrual [Roll Forward]    
Loss contingency accrual, beginning balance 244 319
Loss contingency recognized 0 60
Loss contingency accrual payments (17) (87)
Loss contingency accrual, ending balance 227 292
Legal Contingencies And Other    
Loss Contingency Accrual [Roll Forward]    
Loss contingency accrual, beginning balance 444 145
Loss contingency recognized 39 640
Loss contingency accrual payments (47) (40)
Loss contingency accrual, ending balance $ 436 $ 745