Financing Receivables: (Details 3) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financing Receivables on Non-accrual Status
Total Receivables	$ 188	$ 191
Lease receivables
Financing Receivables on Non-accrual Status
Total Receivables	62	59
Lease receivables | Major Markets
Financing Receivables on Non-accrual Status
Total Receivables	17	25
Lease receivables | Growth Markets
Financing Receivables on Non-accrual Status
Total Receivables	45	34
Loan receivables
Financing Receivables on Non-accrual Status
Total Receivables	126	132
Loan receivables | Major Markets
Financing Receivables on Non-accrual Status
Total Receivables	35	40
Loan receivables | Growth Markets
Financing Receivables on Non-accrual Status
Total Receivables	$ 90	$ 92