Note 8 - Stockholders' Equity - Changes in Each Component of Accumulated Other Comprehensive Income (AOCI) of the Parent (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Balance		$ 1,603	$ 1,975	$ 1,834
Other comprehensive income (loss)		13	(32)	39
Balance		1,637	1,603	1,975
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance		(895)	(809)	(802)
Currency translation adjustments		27	(88)	(7)
Tax expense			2
Other comprehensive income (loss)		27	(86)	(7)
Balance		(868)	(895)	(809)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance		21	4	9
Holding gains and losses		22	76	55
Reclassification of amount to net income	[1]	(23)	(56)	(59)
Tax expense			(3)	(1)
Other comprehensive income (loss)		(1)	17	(5)
Balance		20	21	4
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance		(127)	(180)	(233)
Net actuarial gains (losses)		(25)	62	52
Reclassification adjustment for net actuarial losses included in net periodic benefit cost (b)	[2]	3	11	18
Tax expense		7	(20)	(17)
Other comprehensive income (loss)		(15)	53	53
Balance		(142)	(127)	(180)
AOCI Attributable to Parent [Member]
Balance		(1,001)	(985)	(1,026)
Currency translation adjustments		27	(88)	(7)
Holding gains and losses		22	76	55
Reclassification of amount to net income	[1]	(23)	(56)	(59)
Net actuarial gains (losses)		(25)	62	52
Reclassification adjustment for net actuarial losses included in net periodic benefit cost (b)	[2]	3	11	18
Tax expense		7	(21)	(18)
Other comprehensive income (loss)		11	(16)	41
Balance		$ (990)	$ (1,001)	$ (985)

[1] Realized gains and losses from currency-related forward contracts associated with forecasted transactions or from other derivative instruments treated as cash flow hedges are reclassified from AOCI into the same line item in the consolidated statement of operations in which the underlying forecasted transaction or other hedged item is recorded. See Note 14 for additional details.

[2] See Note 12 for additional details.