Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 49	$ 78	$ 67	$ (165)
Other comprehensive income (loss):
Foreign currency translation adjustments	1	(15)	7	(37)
Securities:
Reclassification of gain to net income	0	(21)	0	(21)
Unrealized loss on securities, before tax	0	(2)	0	(7)
Unrealized loss on securities, tax portion	0	0	0	2
Net change in securities	0	(23)	0	(26)
Defined benefit plans:
Defined benefit plan adjustment, before tax	2	1	4	3
Defined benefit plan adjustment, tax portion	0	0	(1)	0
Defined benefit plan adjustment, net of tax	2	1	3	3
Other comprehensive income (loss)	3	(37)	10	(60)
Comprehensive income (loss)	$ 52	$ 41	$ 77	$ (225)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=51831270

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=51831223

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e557-108580

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=51831255