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
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)

Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source.

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