Note 10 - Hedging Activities - Undesignated Hedges (Details) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Gross notional value for translated earning contracts		$ 6,915	$ 10,193
Not Designated as Hedging Instrument [Member]
Gross notional value for translated earning contracts		5,100	7,500
Average Rate Forward Contracts, Japanese Yen-denominated [Member] | Not Designated as Hedging Instrument [Member]
Gross notional value for translated earning contracts		200	100
Average Rate Forward Contracts, South Korean Won-denominated [Member] | Not Designated as Hedging Instrument [Member]
Gross notional value for translated earning contracts		1,700	2,100
Average Rate Forward Contracts, Other Foreign Currencies [Member] | Not Designated as Hedging Instrument [Member]
Gross notional value for translated earning contracts	[1]	1,100	700
Options Contracts, Japanese Yen-denominated [Member] | Not Designated as Hedging Instrument [Member]
Gross notional value for translated earning contracts	[2]	$ 2,100	$ 4,600

[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.