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Note 1 - Summary of Impact of Adoption on Consolidated Statement of Operations and Consolidated Statement of Financial Position (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jan. 01, 2018	Dec. 31, 2017
Revenues
Total revenues	$ 372	$ 381	$ 729	$ 738
Net income (loss)	4	4	(21)	11
Liabilities
Other current liabilities	208		208			$ 217
Other long-term liabilities	198		198			202
Equity (Deficit)
Accumulated deficit	(205)		(205)			(174)
Balances without Adoption of ASU 2014-09 [Member]
Liabilities
Other current liabilities						217
Other long-term liabilities						202
Equity (Deficit)
Accumulated deficit						$ (174)
Product [Member]
Revenues
Total revenues	300	307	585	590
Service [Member]
Revenues
Total revenues	72	$ 74	144	$ 148
ASU 2014-09 [Member]
Liabilities
Other current liabilities					$ 219
Other long-term liabilities					210
Equity (Deficit)
Accumulated deficit					(184)
ASU 2014-09 [Member] \| Balances without Adoption of ASU 2014-09 [Member]
Revenues
Total revenues	371		727
Net income (loss)	3		(23)
Liabilities
Other current liabilities	206		206
Other long-term liabilities	192		192
Equity (Deficit)
Accumulated deficit	(197)		(197)
ASU 2014-09 [Member] \| Effect of Change Higher (Lower) [Member]
Revenues
Total revenues	1		2
Net income (loss)	1		2
Liabilities
Other current liabilities	2		2		2
Other long-term liabilities	6		6		8
Equity (Deficit)
Accumulated deficit	(8)		(8)		$ (10)
ASU 2014-09 [Member] \| Product [Member] \| Balances without Adoption of ASU 2014-09 [Member]
Revenues
Total revenues	299		583
ASU 2014-09 [Member] \| Product [Member] \| Effect of Change Higher (Lower) [Member]
Revenues
Total revenues	1		2
ASU 2014-09 [Member] \| Service [Member] \| Balances without Adoption of ASU 2014-09 [Member]
Revenues
Total revenues	$ 72		$ 144