Financing Receivables - Non-Accrual Status (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Total Lease Receivable and Loan Receivable Portfolio Segments
Financing Receivables on Non-accrual Status
Total Receivables	$ 184	$ 168
Lease receivables
Financing Receivables on Non-accrual Status
Total Receivables	45	65
Loan receivables
Financing Receivables on Non-accrual Status
Total Receivables	139	104
Major Markets | Lease receivables
Financing Receivables on Non-accrual Status
Total Receivables	1	2
Major Markets | Loan receivables
Financing Receivables on Non-accrual Status
Total Receivables	18	13
Growth Markets | Lease receivables
Financing Receivables on Non-accrual Status
Total Receivables	44	63
Growth Markets | Loan receivables
Financing Receivables on Non-accrual Status
Total Receivables	$ 121	$ 91