Note 11 - Fair Value Measurements and Derivatives (Details Textual) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025	Sep. 30, 2024	Jun. 30, 2024
Foreign Exchange Forward [Member]
Derivative, Notional Amount	$ 798	$ 898
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member]
Derivative, Notional Amount	543
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member]
Derivative, Notional Amount			$ 122	$ 100
Currency Swap [Member]
Derivative, Notional Amount	704	$ 712
Currency Swap [Member] | Designated as Hedging Instrument [Member]
Derivative, Notional Amount	$ 321