Note 12 - Shareholders' Equity- Summary of Changes in Foreign Currency Translation Adjustment Component of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Balance		$ 12,275	$ 12,545
Loss on foreign currency translation (2)		(84)	(200)
Net current-period other comprehensive loss		(67)	(187)
Balance		12,207	12,629
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	[1]	(1,712)	(933)
Loss on foreign currency translation (2)	[1],[2]	(83)	(198)
Equity method affiliates (3)	[1],[3]	(1)	(2)
Net current-period other comprehensive loss		(84)	(200)
Balance	[1]	$ (1,796)	$ (1,133)

[1] All amounts are after tax. Amounts in parentheses indicate debits to accumulated other comprehensive (loss) income.

[2] For the three months ended March 31, 2023 and 2022, amounts are net of tax benefit of $16 million and $11 million, respectively.

[3] Tax effects are not significant.