Note 19 - Changes in Major Plan Assets and Benefit Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
Changes In Plan Assets And Benefit Recognized In Other Comprehensive Income Loss [Line Items]
Newly established gain (loss)		$ (5)	$ 35
Amortization of:
Prior service credit	[1]	(8)	(8)
U.S. [Member]
Changes In Plan Assets And Benefit Recognized In Other Comprehensive Income Loss [Line Items]
Newly established gain (loss)		6	90
Amortization of:
Prior service credit		(7)	(7)
Net actuarial loss		5
Total (loss) income recognized in Other comprehensive income		4	83
Non-US [Member]
Changes In Plan Assets And Benefit Recognized In Other Comprehensive Income Loss [Line Items]
Newly established gain (loss)		(21)	(37)
Amortization of:
Net actuarial loss		5	3
Total (loss) income recognized in Other comprehensive income		$ (16)	$ (34)

[1] Reclassified to Pension (income) expense - refer to Note 19, "Retirement Plans" and Note 20, "Other Postretirement Benefits" for additional information.