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Long-term Debt and Finance Leases - Pre-Capitalized Trust Securities Facility (Details) - USD ($) $ in Millions	Dec. 31, 2024	Aug. 29, 2023
LC Agreement | Letter of Credit
Debt Instrument [Line Items]
Credit facility		$ 485
Borrowings outstanding	$ 480
Pre-Capitalized Trust Securities Redeemable July 2028 | Alexander Funding Trust II
Debt Instrument [Line Items]
Sale pre-capitalized trust securities		$ 500

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