Note 19 - Retirement Plans - Changes in Major Plan Assets and Benefit Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Newly established (loss) gain		$ (122)	$ 277	$ 632
Newly established prior service cost		(29)	(28)	0
Prior service cost (credit)	[1]	9	(4)	(7)
Net actuarial (gain) loss	[1]	(31)	8	37
UNITED STATES
Newly established (loss) gain		(115)	149	635
Newly established prior service cost		(29)	(28)	0
Prior service cost (credit)		9	(3)	(7)
Net actuarial (gain) loss		(30)	0	30
Total (loss) income recognized in Other comprehensive (loss) income		(165)	118	658
Foreign Plan [Member]
Newly established (loss) gain		(7)	120	(4)
Newly established prior service cost		0	0	0
Prior service cost (credit)		0	0	0
Net actuarial (gain) loss		1	10	9
Total (loss) income recognized in Other comprehensive (loss) income		$ (6)	$ 130	$ 5

[1] Reclassified to Pension income - refer to Note 20, "Retirement Plans" and Note 21, "Other Postretirement Benefits" for additional information.