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, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance		$ 1,975	$ 1,834	$ 1,968
Other comprehensive income (loss)		(32)	39	(29)
Deconsolidation of non-wholly owned subsidiary			(8)	(20)
Balance		1,603	1,975	1,834
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance		(809)	(802)	(714)
Currency translation adjustments		(88)	(7)	(88)
Other comprehensive income (loss)		(86)	(7)	(88)
Tax expense		2
Balance		(895)	(809)	(802)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance		4	9	(30)
Holding gains and losses		76	55	(78)
Reclassification of amount to net income	[1]	(56)	(59)	117
Other comprehensive income (loss)		17	(5)	39
Tax expense		(3)	(1)
Balance		21	4	9
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance		(180)	(233)	(243)
Net actuarial gains (losses)		62	52	(11)
Reclassification adjustment for net actuarial losses included in net periodic benefit cost (b)	[2]	11	18	20
Other comprehensive income (loss)		53	53	9
Deconsolidation of non-wholly owned subsidiary				1
Tax expense		(20)	(17)
Balance		(127)	(180)	(233)
AOCI Attributable to Parent [Member]
Balance		(985)	(1,026)	(987)
Currency translation adjustments		(88)	(7)	(88)
Holding gains and losses		76	55	(78)
Reclassification of amount to net income	[1]	(56)	(59)	117
Net actuarial gains (losses)		62	52	(11)
Reclassification adjustment for net actuarial losses included in net periodic benefit cost (b)	[2]	11	18	20
Other comprehensive income (loss)		(16)	41	(40)
Deconsolidation of non-wholly owned subsidiary				1
Tax expense		(21)	(18)
Balance		$ (1,001)	$ (985)	$ (1,026)

[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.