Segment Information Level 4 (Details) - Total Assets by Segment (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Total Assets by Segment [Line Items]
Total Assets by Segment [Table Text Block]	$ 2,055	$ 2,382
EPCD [Member]
Total Assets by Segment [Line Items]
Total Assets by Segment [Table Text Block]	1,002	1,320
FPD [Member]
Total Assets by Segment [Line Items]
Total Assets by Segment [Table Text Block]	840	807
Corporate and Other [Member]
Total Assets by Segment [Line Items]
Total Assets by Segment [Table Text Block]	$ 213	$ 255