Note 11 - Fair Value Measurements and Derivatives (Details Textual) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
Sep. 30, 2024 |
Jun. 30, 2024 |
|---|---|---|---|---|
| Foreign Exchange Forward [Member] | ||||
| Derivative, Notional Amount | $ 698 | $ 898 | ||
| Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | ||||
| Derivative, Notional Amount | 452 | |||
| Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | ||||
| Derivative, Notional Amount | $ 122 | $ 100 | ||
| Currency Swap [Member] | ||||
| Derivative, Notional Amount | 318 | $ 712 | ||
| Currency Swap [Member] | Designated as Hedging Instrument [Member] | ||||
| Derivative, Notional Amount | $ 318 |