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Employee Pension and Other Postretirement Benefits Cash Contributions (Table) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Defined Benefit Plan Disclosure
Other benefit plans	$ 10	$ 9
Total contributions	14	13
Discretionary Contribution | Qualified
Defined Benefit Plan Disclosure
Pension contributions	1
Discretionary Contribution | Non-qualified
Defined Benefit Plan Disclosure
Pension contributions	$ 3	$ 4

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