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Employee Benefit Plans (Target and Actual Asset Allocations) (Details)	Dec. 31, 2025	Dec. 31, 2024
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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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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