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Commitments and Contingent Liabilities - Environmental Matters (Narrative) (Details) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2016 USD ($) site | Mar. 31, 2025 USD ($) site | Dec. 31, 2023 USD ($)
Loss Contingencies [Line Items] |  |  |
Environmental Loss Contingency Statement Of Financial Position Extensible Enumeration Not Disclosed Flag |  | Consolidated Balance Sheet |
Environmental Litigation |  |  |
Loss Contingencies [Line Items] |  |  |
Estimated loss |  | $ 23 | $ 3
Hazardous substance sites | site | 14 |  |
Hazardous substance sites, number | site | 1 | 13 |
Estimated environmental assessment and cleanup costs | $ 1,400 |  |
Claims And Demands From Government Agencies, Environmental Conditions |  |  |
Loss Contingencies [Line Items] |  |  |
Environmental loss contingency, agreed remediation, number of sites | site |  | 4 |
Loss contingency, estimate of possible loss |  | $ 25 |
Estimated loss |  | $ 25 |

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