Note 14 - Changes in Other Comprehensive (Loss) Income, by Component (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016		Mar. 31, 2015
Currency translation adjustments	$ 8		$ (7)
Unrealized gains on available-for-sale securities, before tax			$ 1
Tax provision
Unrealized gains on available-for-sale securities, net of tax			$ 1
Newly established prior service credit			4
Newly established net actuarial (loss) gain	$ (142)		$ 5
Tax provision
Newly established prior service credit and net actuarial (loss) gain, net of tax	$ (142)		$ 9
Amortization of prior-service credit	(2)	[1]	$ (2)
Amortization of actuarial gains	(1)	[1]
Recognition of gains due to settlements	(1)	[1]
Total reclassification adjustments	$ (4)		$ (2)
Tax provision
Reclassification adjustments, net of tax	$ (4)		$ (2)
Pension and other postretirement benefit plan changes, net of tax	(146)		7
Other comprehensive (loss) income	$ (138)		$ 1

[1] Reclassified to Total Net Periodic Benefit Cost – refer to Note 11, “Retirement Plans and Other Postretirement Benefits”.