Note 8 - Derivative Instruments and Hedging Activities (Details Textual) - Foreign Exchange Contract [Member] € in Millions, $ in Millions  | 
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2023  | 
 Jun. 30, 2023  
USD ($) 
 | 
 Jun. 30, 2022  
USD ($) 
 | 
 Jun. 30, 2023  
EUR (€) 
 | 
|
| Derivative Instruments, Approximate Term of Foreign Currency Contracts (Month) | 1 month | |||
| Derivative, Notional Amount | $ 384 | |||
| Not Designated as Hedging Instrument [Member] | ||||
| Derivative, Notional Amount | 164 | € 150 | ||
| Gain (Loss) on Derivative Used in Net Investment Hedge, after Tax | $ 6 | $ (10) | ||
| X | ||||||||||
- Definition Represents the approximate term of foreign currency contracts. No definition available. 
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- Definition Nominal or face amount used to calculate payment on derivative. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Amount, after tax, of reclassification from accumulated other comprehensive income (AOCI) of gain (loss) from increase (decrease) in fair value of net investment hedge. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Details 
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- Details 
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