Note 5 - Stockholders' Equity - Changes in Each Component of Accumulated Other Comprehensive Income (AOCI) of the Parent (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Balance		$ 1,603	$ 1,975
Other comprehensive income		41	36
Balance		1,658	1,987
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance		(895)	(809)
Currency translation adjustments		24	39
Tax expense
Other comprehensive income		24	39
Balance		(871)	(770)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance		21	4
Holding gains and losses		16	19
Tax expense		(1)	(1)
Other comprehensive income		15	(4)
Reclassification of amount to net income (a)	[1]		(22)
Balance		36
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance		(127)	(180)
Reclassification adjustment for net actuarial losses included in net periodic benefit cost (b)	[2]	1	2
Tax expense			(1)
Other comprehensive income		1	1
Balance		(126)	(179)
AOCI Attributable to Parent [Member]
Balance		(1,001)	(985)
Currency translation adjustments		24	39
Holding gains and losses		16	19
Reclassification adjustment for net actuarial losses included in net periodic benefit cost (b)	[2]	1	2
Tax expense		(1)	(2)
Other comprehensive income		40	36
Reclassification of amount to net income (a)	[1]		(22)
Balance		$ (961)	$ (949)

[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 11 for additional details.

[2] See Note 9 for additional details.