Note 10 - Hedging Activities - Summary of Effect of Undesignated Derivative Financial Instruments on Consolidated Financial Statements (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Gain (loss) recognized in income		$ 155	$ 316
Foreign Exchange Contract [Member] | Other (Expense) Income, Net [Member]
Gain (loss) recognized in income	[1]	26	44
Translated Earnings Contracts [Member] | Translated Earnings Contract (Loss) Gain, Net [Member]
Gain (loss) recognized in income		$ 129	$ 272

[1] A loss of $14 million was reclassified from accumulated other comprehensive loss into other expense, net, resulting from the de-designation of certain cash flow hedges during the year ended December 31, 2020.