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Note 11 - Hedging Activities - Undesignated Hedges (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Gross notional value for translated earning contracts $ 12,004 $ 13,543
Not Designated as Hedging Instrument [Member]    
Gross notional value for translated earning contracts 8,300 8,900
Average Rate Forward Contracts, Japanese Yen-denominated [Member] | Not Designated as Hedging Instrument [Member]    
Gross notional value for translated earning contracts 800 2,900
Average Rate Forward Contracts, South Korean Won-denominated [Member] | Not Designated as Hedging Instrument [Member]    
Gross notional value for translated earning contracts 2,300 1,200
Average Rate Forward Contracts, Euro-denominated [Member] | Not Designated as Hedging Instrument [Member]    
Gross notional value for translated earning contracts 100 200
Average Rate Forward Contracts, Other Foreign Currencies [Member] | Not Designated as Hedging Instrument [Member]    
Gross notional value for translated earning contracts [1] 600 100
Options Contracts, Japanese Yen-denominated [Member] | Not Designated as Hedging Instrument [Member]    
Gross notional value for translated earning contracts [2] 4,500 3,600
Options Contracts, Other Foreign Currencies [Member] | Not Designated as Hedging Instrument [Member]    
Gross notional value for translated earning contracts [3] $ 900
[1] Denominational currencies for other average rate forward contracts include the Chinese yuan, New Taiwan dollar, and British pound.
[2] Japanese yen-denominated option contracts include zero-cost collars, purchased put and call options. With respect to the zero-cost collars, the gross notional amount includes the value of the put and call options. However, due to the nature of the zero-cost collars, only the put or call option can be exercised at maturity.
[3] Other foreign currency option contracts are purchased basket options that include a basket of underlying currencies, including the Japanese yen, South Korean won, euro and British pound, and each basket option are settled against U.S. dollars.