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Note 1 - Description of Business and Summary of Significant Accounting Policies - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Items included in accumulated other comprehensive loss: |  |
Adjustment to pension liability | $ (8) | $ (7)
Adjustment to fair value of interest rate caps | (31) | (23)
Income tax benefit | (9) | (7)
Accumulated other comprehensive loss | $ (30) | $ (23)

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