Other Non-Current Assets - Summary of Other Non-Current Assets (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Other Assets Noncurrent [Abstract]
Deferred financing costs	$ 33	$ 40
Supplier prepayments	29	24
Pension assets	13	11
Prepaid incentives	9	22
Derivative assets	4	8
Other	26	15
Other non-current assets, Total	$ 114	$ 120