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v3.25.4

Employee Benefit Plans (Target and Actual Asset Allocations) (Details) | Dec. 31, 2025 | Dec. 31, 2024
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Master Trust |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 100.00% |
Actual asset allocation | 100.00% | 100.00%
Master Trust | Global equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 36.00% |
Actual asset allocation | 37.00% | 44.00%
Master Trust | Global private equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 1.00% |
Actual asset allocation | 1.00% | 1.00%
Master Trust | Debt securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 45.00% |
Actual asset allocation | 45.00% | 33.00%
Master Trust | Return seeking debt securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 6.00% |
Actual asset allocation | 5.00% | 7.00%
Master Trust | Hedge funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 5.00% |
Actual asset allocation | 5.00% | 5.00%
Master Trust | Real assets and cash |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 7.00% |
Actual asset allocation | 7.00% | 10.00%
OPEB |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 100.00% |
Actual asset allocation | 100.00% | 100.00%
OPEB | U.S. equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 29.00% |
Actual asset allocation | 32.00% | 34.00%
OPEB | Non-U.S. equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 14.00% |
Actual asset allocation | 17.00% | 15.00%
OPEB | Debt securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 48.00% |
Actual asset allocation | 28.00% | 31.00%
OPEB | Real estate |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 4.00% |
Actual asset allocation | 7.00% | 7.00%
OPEB | Cash |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 5.00% |
Actual asset allocation | 16.00% | 13.00%
Other Post-Retirement Benefit Plans | Master Trust |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 100.00% |
Actual asset allocation | 100.00% | 100.00%
Other Post-Retirement Benefit Plans | Master Trust | Global equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 22.00% |
Actual asset allocation | 23.00% | 15.00%
Other Post-Retirement Benefit Plans | Master Trust | Debt securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 65.00% |
Actual asset allocation | 64.00% | 79.00%
Other Post-Retirement Benefit Plans | Master Trust | Return seeking debt securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 4.00% |
Actual asset allocation | 3.00% | 2.00%
Other Post-Retirement Benefit Plans | Master Trust | Hedge funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 5.00% |
Actual asset allocation | 5.00% |
Other Post-Retirement Benefit Plans | Master Trust | Real assets and cash |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target allocation (as a percent) | 4.00% |
Actual asset allocation | 5.00% | 4.00%

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