Other Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Other Liabilities Disclosure [Abstract]
Legal and regulatory matters (Note 10)	$ 110	$ 105
Derivatives	13	2
Pension and other post employment benefits	11	11
Income tax contingencies	9	9
Other	8	10
Total	$ 151	$ 137