Note 1 - Basis of Presentation - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Items included in accumulated other comprehensive loss:
Adjustment to pension liability	$ (16)	$ (16)
Adjustment to fair value of interest rate caps	(4)	0
Income tax benefit	(5)	(4)
Accumulated other comprehensive loss	$ (15)	$ (12)

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

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Period Type:	instant