Financing Receivables - Non-Accrual Status (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Total Lease Receivable and Loan Receivable Portfolio Segments
Financing Receivables on Non-accrual Status
Total Receivables	$ 172	$ 185
Lease receivables
Financing Receivables on Non-accrual Status
Total Receivables	30	40
Lease receivables | Americas
Financing Receivables on Non-accrual Status
Total Receivables	25	23
Lease receivables | EMEA
Financing Receivables on Non-accrual Status
Total Receivables	0	2
Lease receivables | Asia Pacific
Financing Receivables on Non-accrual Status
Total Receivables	4	14
Loan receivables
Financing Receivables on Non-accrual Status
Total Receivables	142	145
Loan receivables | Americas
Financing Receivables on Non-accrual Status
Total Receivables	79	128
Loan receivables | EMEA
Financing Receivables on Non-accrual Status
Total Receivables	53	5
Loan receivables | Asia Pacific
Financing Receivables on Non-accrual Status
Total Receivables	$ 10	$ 12