Intangible Assets (Details 1) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014
Estimated annual amortization expense intangible assets
Estimated future amortization expense, 2014	$ 3
Estimated future amortization expense, 2015	7
Estimated future amortization expense, 2016	7
Estimated future amortization expense, 2017	2
Estimated future amortization expense, 2018	1
Estimated future amortization expense, 2019 and thereafter	$ 1