Financial Services Finance Receivables, net (Details) - USD ($)
$ in Millions |
Sep. 30, 2016 |
Jun. 30, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Dec. 31, 2014 |
| Financing Receivables [Line Items] |
|
|
|
|
|
|
| Financing Receivable, Gross |
$ 95,642
|
|
$ 91,064
|
$ 85,564
|
|
|
| Allowance for Credit Losses |
(478)
|
$ (449)
|
(373)
|
(356)
|
$ (335)
|
$ (321)
|
| Finance receivables, net |
95,164
|
|
90,691
|
85,208
|
|
|
| Finance receivables, net - Current portion |
45,550
|
|
45,137
|
|
|
|
| Finance receivables, net - Non-current portion |
49,614
|
|
45,554
|
|
|
|
| Net finance receivables subject to fair value |
93,033
|
|
88,876
|
|
|
|
| Finance Receivables Net Not Subject To Fair Value |
2,100
|
|
1,800
|
|
|
|
| Uncollected Interest Receivable Excluded From Finance Receivable |
206
|
|
209
|
|
|
|
| Consumer [Member] |
|
|
|
|
|
|
| Financing Receivables [Line Items] |
|
|
|
|
|
|
| Financing Receivable, Gross |
65,109
|
|
59,949
|
59,124
|
|
|
| Allowance for Credit Losses |
(464)
|
(432)
|
(357)
|
(342)
|
(322)
|
(305)
|
| Finance receivables, net |
64,645
|
|
|
58,782
|
|
|
| Amount of finance receivables that secure certain debt obligations |
29,900
|
|
27,600
|
|
|
|
| Consumer [Member] | Retail financing [Member] |
|
|
|
|
|
|
| Financing Receivables [Line Items] |
|
|
|
|
|
|
| Finance Receivable Before Unearned Interest Supplements |
67,894
|
|
62,068
|
|
|
|
| Unearned interest supplements |
(2,785)
|
|
(2,119)
|
|
|
|
| Financing Receivable, Gross |
65,109
|
|
59,949
|
|
|
|
| Non-consumer [Member] |
|
|
|
|
|
|
| Financing Receivables [Line Items] |
|
|
|
|
|
|
| Financing Receivable, Gross |
30,533
|
|
31,115
|
26,440
|
|
|
| Allowance for Credit Losses |
(14)
|
$ (17)
|
(16)
|
(14)
|
$ (13)
|
$ (16)
|
| Finance receivables, net |
30,519
|
|
|
$ 26,426
|
|
|
| Amount of finance receivables that secure certain debt obligations |
23,300
|
|
26,100
|
|
|
|
| Non-consumer [Member] | Dealer financing [Member] |
|
|
|
|
|
|
| Financing Receivables [Line Items] |
|
|
|
|
|
|
| Financing Receivable, Gross |
30,533
|
|
31,115
|
|
|
|
| Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] |
|
|
|
|
|
|
| Financing Receivables [Line Items] |
|
|
|
|
|
|
| Fair value |
$ 94,327
|
|
$ 90,048
|
|
|
|