Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Pension And Postretirement Benefits (Net Supplemental Pension Benefits Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		18 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2026
Supplemental Retirement and Savings Plans
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit (credit) costs	$ 16	$ 16	$ 32	$ 33
Forecast [Member] \| Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Employer discretionary contribution amount					$ 1,500