New Accounting Standards - Effect of change related to ASU 2014-09 (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jan. 01, 2017	Dec. 31, 2016
Revenues
Financial Services Revenue	$ 2,738	$ 2,553	$ 5,407	$ 5,014
Costs and expenses
Cost of sales	33,349	32,522	66,057	63,039
Interest expense on Automotive debt	277	212	556	412
Provision for/(Benefit from) income taxes	209	903	858	2,099
Net income	2,050	1,972	3,644	4,427
Balance Sheet
Trade and other receivables	10,159		10,159		$ 11,085	$ 11,102
Other Assets, Current	3,291		3,291		3,675	3,368
Net investment in operating leases	28,597		28,597		27,751	28,829
Deferred income taxes	10,145		10,145		10,228	9,705
Payables	23,568		23,568		21,558	21,296
Other liabilities and deferred revenue, current	19,958		19,958		17,887	19,316
Other Liabilities and deferred revenue, Noncurrent	24,840		24,840		24,390	24,395
Deferred income taxes	735		735			691
Retained earnings	18,437		18,437		16,200	15,634
Operating Segments [Member] | Automotive
Revenues
Automotive Revenue	37,113	36,932	73,588	72,189
Balance Sheet
Debt payable within one year	2,911		2,911		3,011	2,685
Operating Segments [Member] | Non-Financial Services
Costs and expenses
Other income/(loss), net	658	686	1,370	1,454
Operating Segments [Member] | Financial Services
Costs and expenses
Other income/(loss), net	74	$ 82	96	$ 173
Balance Sheet
Debt payable within one year	47,862		47,862			$ 46,984
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Accounting Standards Update 2014-09 [Member]
Revenues
Financial Services Revenue	2,641		5,221
Costs and expenses
Cost of sales	33,184		65,630
Interest expense on Automotive debt	266		528
Provision for/(Benefit from) income taxes	204		846
Net income	2,037		3,604
Balance Sheet
Trade and other receivables	10,199		10,199
Other Assets, Current	2,951		2,951
Net investment in operating leases	29,553		29,553
Deferred income taxes	10,170		10,170
Payables	23,285		23,285
Other liabilities and deferred revenue, current	21,393		21,393
Other Liabilities and deferred revenue, Noncurrent	24,845		24,845
Deferred income taxes	735		735
Retained earnings	18,361		18,361
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Operating Segments [Member] | Automotive | Accounting Standards Update 2014-09 [Member]
Revenues
Automotive Revenue	36,898		73,040
Balance Sheet
Debt payable within one year	2,511		2,511
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Operating Segments [Member] | Non-Financial Services | Accounting Standards Update 2014-09 [Member]
Costs and expenses
Other income/(loss), net	679		1,411
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Operating Segments [Member] | Financial Services | Accounting Standards Update 2014-09 [Member]
Costs and expenses
Other income/(loss), net	171		282
Difference Between Revenue Guidance in Effect before and after Topic 606 [Member] | Accounting Standards Update 2014-09 [Member]
Revenues
Financial Services Revenue	97		186
Costs and expenses
Cost of sales	165		427
Interest expense on Automotive debt	11		28
Provision for/(Benefit from) income taxes	5		12
Net income	13		40
Balance Sheet
Trade and other receivables	(40)		(40)		(17)
Other Assets, Current	340		340		307
Net investment in operating leases	(956)		(956)		(1,078)
Deferred income taxes	(25)		(25)		(13)
Payables	283		283		262
Other liabilities and deferred revenue, current	(1,435)		(1,435)		(1,429)
Other Liabilities and deferred revenue, Noncurrent	(5)		(5)		(5)
Deferred income taxes	0		0
Retained earnings	76		76		36
Difference Between Revenue Guidance in Effect before and after Topic 606 [Member] | Operating Segments [Member] | Automotive | Accounting Standards Update 2014-09 [Member]
Revenues
Automotive Revenue	215		548
Balance Sheet
Debt payable within one year	400		400		$ 326
Difference Between Revenue Guidance in Effect before and after Topic 606 [Member] | Operating Segments [Member] | Non-Financial Services | Accounting Standards Update 2014-09 [Member]
Costs and expenses
Other income/(loss), net	(21)		(41)
Difference Between Revenue Guidance in Effect before and after Topic 606 [Member] | Operating Segments [Member] | Financial Services | Accounting Standards Update 2014-09 [Member]
Costs and expenses
Other income/(loss), net	$ (97)		$ (186)