Note 14 - Hedging Activities - Undesignated Hedges (Details) - USD ($) $ in Millions		Dec. 31, 2022	Dec. 31, 2021
Gross notional value for translated earning contracts		$ 10,193	$ 13,543
Not Designated as Hedging Instrument [Member]
Gross notional value for translated earning contracts		7,500	8,900
Average Rate Forward Contracts, Japanese Yen-denominated [Member] | Not Designated as Hedging Instrument [Member]
Gross notional value for translated earning contracts		100	2,900
Average Rate Forward Contracts, South Korean Won-denominated [Member] | Not Designated as Hedging Instrument [Member]
Gross notional value for translated earning contracts		2,100	1,200
Average Rate Forward Contracts, Other Foreign Currencies [Member] | Not Designated as Hedging Instrument [Member]
Gross notional value for translated earning contracts	[1]	700	300
Options Contracts, Japanese Yen-denominated [Member] | Not Designated as Hedging Instrument [Member]
Gross notional value for translated earning contracts	[2]	$ 4,600	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 average rate forward contracts include the Chinese yuan, New Taiwan dollar, euro and British pound.

[2] Japanese yen-denominated option contracts include zero-cost collars, purchased call options and put options. With respect to the zero-cost collars, the gross notional amount includes the value of both the put and call options. However, due to the nature of the zero-cost collars, only the put or the call option can be exercised at maturity.

[3] Other foreign currencies option contracts are purchased basket options that include a basket of underlying currencies, including the Japanese yen, South Korean won, Chinese yuan, euro, and British pound, and each basket option have been settled against U.S. dollars.