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Note 20 - Changes in Other Comprehensive Income (Loss), by Component (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract]
Currency translation adjustments		$ 1	$ (20)	$ 4	$ (7)
Newly established net actuarial gain		5	1	5	1
Tax Provision		(2)		(2)
Newly established net actuarial gain, net of tax		3	1	3	1
Amortization of prior service credit	[1]	(3)	(2)	(4)	(4)
Amortization of actuarial losses	[1]	2	1	2	2
Recognition of (gains) losses due to curtailments and settlements		(2)		(2)	1
Total reclassification adjustments		(3)	(1)	(4)	(1)
Reclassification adjustments, net of tax		(3)	(1)	(4)	(1)
Pension and other postretirement benefit plan changes, net of tax				(1)
Other comprehensive income (loss), net of tax		$ 1	$ (20)	$ 3	$ (7)
[1] Reclassified to Total Net Periodic Benefit Cost - refer to Note 16, "Retirement Plans and Other Postretirement Benefits".

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