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Intangible Assets (Details 1) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2014
Estimated annual amortization expense intangible assets  
Estimated future amortization expense, 2014 $ 1
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