Note 5 - Stockholders' Equity - Changes In Equity (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022
Balance	$ 1,658	$ 1,603	$ 1,987	$ 1,975
Net income (loss)	35	32	11	21
Other comprehensive income (loss)	(3)	40	(81)	36
Common stock dividends and dividend equivalents	(14)	(15)	(15)	(14)
Distributions to noncontrolling interests	(2)	(1)	(1)	(1)
Redeemable noncontrolling interests adjustment to redemption value		(1)	(1)	(1)
Stock compensation	7	8	4	4
Stock withheld for employees taxes		(8)		(7)
Purchase of noncontrolling interests	0		(1)	(1)
Common stock repurchases				(25)
Balance	1,681	1,658	1,903	1,987
Common Stock [Member]
Balance	2	2	2	2
Balance	2	2	2	2
Additional Paid-in Capital [Member]
Balance	2,237	2,229	2,431	2,427
Stock compensation	7	8	4	4
Balance	2,244	2,237	2,435	2,431
Retained Earnings [Member]
Balance	333	321	664	662
Net income (loss)	30	28	8	17
Common stock dividends and dividend equivalents	(14)	(15)	(15)	(14)
Redeemable noncontrolling interests adjustment to redemption value		(1)	(1)	(1)
Balance	349	333	656	664
Treasury Stock, Common [Member]
Balance	(8)	0	(216)	(184)
Stock withheld for employees taxes		(8)		(7)
Common stock repurchases				(25)
Balance	(8)	(8)	(216)	(216)
AOCI Attributable to Parent [Member]
Balance	(961)	(1,001)	(949)	(985)
Other comprehensive income (loss)	(3)	40	(79)	36
Balance	(964)	(961)	(1,028)	(949)
Noncontrolling Interest [Member]
Balance	55	52	55	53
Net income (loss)	5	4	3	4
Other comprehensive income (loss)			(2)
Distributions to noncontrolling interests	(2)	(1)	(1)	(1)
Purchase of noncontrolling interests			(1)	(1)
Balance	$ 58	$ 55	$ 54	$ 55