Note 16 - Changes in Major Plan Assets and Benefit Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Changes In Plan Assets And Benefit Recognized In Other Comprehensive Income Loss [Line Items]
Newly established (loss) gain		$ (148)	$ (88)	$ (278)
Newly established prior service credit			4	61
Amortization of:
Prior service credit	[1]	(7)	(8)	(3)
UNITED STATES
Changes In Plan Assets And Benefit Recognized In Other Comprehensive Income Loss [Line Items]
Newly established (loss) gain		(83)	(126)	(255)
Newly established prior service credit				61
Amortization of:
Prior service credit		(7)	(8)	(3)
Net actuarial loss		7
Net loss recognized in expense due to settlements				10
Total (loss) income recognized in Other comprehensive income		(83)	(134)	(187)
Non-US [Member]
Changes In Plan Assets And Benefit Recognized In Other Comprehensive Income Loss [Line Items]
Newly established (loss) gain		(70)	25	(46)
Amortization of:
Net actuarial loss			2
Transfers				1
Total (loss) income recognized in Other comprehensive income		$ (70)	$ 27	$ (45)

[1] Reclassified to Pension (income) expense - refer to Note 16, "Retirement Plans" and Note 17, "Other Postretirement Benefits" for additional information.