Cash, Cash Equivalents, and Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

The fair values of cash, cash equivalents, and marketable securities measured at fair value on a recurring basis on our balance sheet were as follows (in millions):

		December 31, 2016
	Fair Value  Level	Automotive		Financial Services		All Other		Consolidated
Cash and cash equivalents
U.S. government	1	$	888	$	924	$	—	$	1,812
U.S. government agencies	2	—		—		—		—
Non-U.S. government and agencies	2	200		142		—		342
Corporate debt	2	100		—		—		100
Total marketable securities classified as cash equivalents		1,188		1,066		—		2,254
Cash, time deposits, and money market funds		6,632		7,011		8		13,651
Total cash and cash equivalents		$	7,820	$	8,077	$	8	$	15,905
Marketable securities
U.S. government	1	$	8,099	$	1,634	$	—	$	9,733
U.S. government agencies	2	2,244		505		—		2,749
Non-U.S. government and agencies	2	4,751		632		—		5,383
Corporate debt	2	4,329		475		—		4,804
Equities	1	165		—		—		165
Other marketable securities	2	54		34		—		88
Total marketable securities		$	19,642	$	3,280	$	—	$	22,922
		March 31, 2017
	Fair Value  Level	Automotive		Financial Services		All Other		Consolidated
Cash and cash equivalents
U.S. government	1	$	75	$	749	$	—	$	824
U.S. government agencies	2	798		400		—		1,198
Non-U.S. government and agencies	2	268		283		—		551
Corporate debt	2	115		—		—		115
Total marketable securities classified as cash equivalents		1,256		1,432		—		2,688
Cash, time deposits, and money market funds		8,293		6,836		6		15,135
Total cash and cash equivalents		$	9,549	$	8,268	$	6	$	17,823
Marketable securities
U.S. government	1	$	5,194	$	1,894	$	—	$	7,088
U.S. government agencies	2	3,489		459		—		3,948
Non-U.S. government and agencies	2	5,195		649		—		5,844
Corporate debt	2	4,360		657		—		5,017
Equities	1	202		—		—		202
Other marketable securities	2	39		28		—		67
Total marketable securities		$	18,479	$	3,687	$	—	$	22,166

Available-for-sale Securities [Table Text Block]

The cash equivalents and marketable securities accounted for as available-for-sale (“AFS”) securities on our balance sheet were as follows (in millions):

	December 31, 2016
										Fair Value of Securities with Contractual Maturities
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Within 1 Year		After 1 Year through 5 Years		After 5 Years through 10 Years
Automotive
U.S. government	$	3,703	$	2	$	(14	)	$	3,691	$	727	$	2,776	$	188
U.S. government agencies	308		—		(2		)	306		—		306		—
Non-U.S. government and agencies	1,443		1		(11		)	1,433		148		1,285		—
Corporate debt	1,079		—		—			1,079		1,031		48		—
Total	$	6,533	$	3	$	(27	)	$	6,509	$	1,906	$	4,415	$	188
	March 31, 2017
										Fair Value of Securities with Contractual Maturities
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Within 1 Year		After 1 Year through 5 Years		After 5 Years through 10 Years
Automotive
U.S. government	$	3,104	$	1	$	(12	)	$	3,093	$	522	$	2,430	$	141
U.S. government agencies	1,959		—		(3		)	1,956		834		1,107		15
Non-U.S. government and agencies	2,180		3		(8		)	2,175		248		1,927		—
Corporate debt	1,063		—		—			1,063		1,063		—		—
Total	$	8,306	$	4	$	(23	)	$	8,287	$	2,667	$	5,464	$	156

Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]

The present fair values and gross unrealized losses for cash equivalents and marketable securities accounted for as AFS securities that were in an unrealized loss position, aggregated by investment category and the length of time that individual securities have been in a continuous loss position were as follows (in millions):

	December 31, 2016
	Less than 1 year					1 Year or Greater				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Automotive
U.S. government	$	1,474	$	(14	)	$	—	$	—	$	1,474	$	(14	)
U.S. government agencies	261		(2		)	—		—		261		(2		)
Non-U.S. government and agencies	1,137		(11		)	—		—		1,137		(11		)
Corporate debt	—		—			—		—		—		—
Total	$	2,872	$	(27	)	$	—	$	—	$	2,872	$	(27	)
	March 31, 2017
	Less than 1 year					1 Year or Greater				Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Automotive
U.S. government	$	1,547	$	(12	)	$	—	$	—	$	1,547	$	(12	)
U.S. government agencies	932		(3		)	—		—		932		(3		)
Non-U.S. government and agencies	1,164		(8		)	—		—		1,164		(8		)
Corporate debt	—		—			—		—		—		—
Total	$	3,643	$	(23	)	$	—	$	—	$	3,643	$	(23	)