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LEASE COMMITMENTS (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Future net minimum operating lease payments      
Operating lease, 2015 $ 192us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent    
Operating lease, 2016 169us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears    
Operating lease, 2017 161us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears    
Operating lease, 2018 168us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears    
Operating lease, 2019 104us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears    
Operating lease, Thereafter 592us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter    
Total minimum lease payments 1,386us-gaap_OperatingLeasesFutureMinimumPaymentsDue    
Rental expense for operating leases, net of sublease rental income 155us-gaap_LeaseAndRentalExpense 196us-gaap_LeaseAndRentalExpense 165us-gaap_LeaseAndRentalExpense
Sublease income $ 4us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue $ 3us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue $ 4us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue