Note 11 - Fair Value Measurements and Derivatives - Outstanding Fixed-to-fixed Cross-currency Swaps (Details) - Currency Swap [Member] € in Millions, $ in Millions	Mar. 31, 2026 USD ($)	Mar. 31, 2026 EUR (€)	Dec. 31, 2025 USD ($)
Notional amount	$ 704		$ 712
Not Designated as Hedging Instrument [Member]
Notional amount	$ 383
Luxembourg Intercompany Notes [Member] | Cash Flow Hedging [Member]
Face amount | €		€ 278
Rate	3.70%	3.70%
Notional amount	$ 300	€ 278
Inflow rate	5.38%	5.38%
Outflow rate	3.70%	3.70%
Undesignated 2026 Swap [Member] | Not Designated as Hedging Instrument [Member]
Notional amount	$ 188	€ 169
Inflow rate	6.50%	6.50%
Outflow rate	5.14%	5.14%
Undesignated Offset 2026 Swap [Member] | Not Designated as Hedging Instrument [Member]
Notional amount	$ 188	€ 169
Inflow rate	3.13%	3.13%
Outflow rate	6.50%	6.50%