Note 10 - Fair Value - Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Reported Value Measurement [Member]
Non-qualified employee benefit plan investments	$ 7	$ 10
Long-term debt (including current portion)	(2,056)	(2,011)
Reported Value Measurement [Member] \| Cross Currency Interest Rate Contract [Member]
Cross-currency interest rate contracts	(14)	(22)
Estimate of Fair Value Measurement [Member]
Non-qualified employee benefit plan investments	7	10
Long-term debt (including current portion)	(1,925)	(1,897)
Estimate of Fair Value Measurement [Member] \| Cross Currency Interest Rate Contract [Member]
Cross-currency interest rate contracts	$ (14)	$ (22)

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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+ Details

- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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+ Details