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Annual report pursuant to Section 13 and 15(d)

Commitments And Contingencies Leases (Details)

v2.4.1.9
Commitments And Contingencies Leases (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract] Ìý Ìý Ìý
Operating Leases, Rent Expense, Net $ 47us-gaap_OperatingLeasesRentExpenseNet $ 50us-gaap_OperatingLeasesRentExpenseNet $ 52us-gaap_OperatingLeasesRentExpenseNet
Operating Leases, Future Minimum Payments Due, Current 33us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent Ìý Ìý
Operating Leases, Future Minimum Payments, Due in Two Years 30us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears Ìý Ìý
Operating Leases, Future Minimum Payments, Due in Three Years 28us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears Ìý Ìý
Operating Leases, Future Minimum Payments, Due in Four Years 28us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears Ìý Ìý
Operating Leases, Future Minimum Payments, Due in Five Years 25us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears Ìý Ìý
Operating Leases, Future Minimum Payments, Due Thereafter $ 126us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter Ìý Ìý