Note 13 - Fair Value Measurements and Derivatives - Summary of Deferred Gains (Losses) Reported in AOCI (Details) - Cash Flow Hedging [Member] - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Deferred gain (loss) in AOCI	$ (12)	$ 6
Gain (loss) expected to be reclassified into income in one year or less	0
Foreign Exchange Forward [Member]
Deferred gain (loss) in AOCI	5	9
Gain (loss) expected to be reclassified into income in one year or less	5
Interest Rate Contract [Member]
Deferred gain (loss) in AOCI	(5)	(6)
Gain (loss) expected to be reclassified into income in one year or less	(5)
Currency Swap [Member]
Deferred gain (loss) in AOCI	$ (12)	$ 3