Fair Value Measurements - Input Hierarchy of Items Measured at Fair Value on a Recurring Basis (Details) (USD $)	3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Valuation Methodologies
Number of Days At Which Fair Value of Finance Receivables Is Measured	greater than 120 days past due or deemed to be uncollectible
Number Of Days Used To Determine Short Term Highly Liquid Investments Treatment As Cash Equivalents	90 days
Number Of Days Used To Determine Investments Treatment As Marketable Securities, Minimum	90 days
Term At Which Fair Value of Finance Receivables is Measured	P120
Input Hierarchy of Items Measured at Fair Value on a Recurring Basis - Footnote Narrative
Marketable securities	$ (20,783,000,000)	$ (18,618,000,000)
Cash and cash equivalents
Valuation Methodologies
Number of days for evaluating classification of investments	90 days or less from the date of acquisition
Marketable securities [Member]
Valuation Methodologies
Number of days for evaluating classification of investments	maturity date greater than 90 days at the date of purchase
Automotive [Member] | Fair Value, Measurements, Recurring [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	774,000,000	1,309,000,000
Marketable securities
Total marketable securities	15,801,000,000	14,783,000,000
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	129,000,000	218,000,000
Total assets at fair value	16,704,000,000	16,310,000,000
Derivative financial instruments
Total derivative financial instruments	663,000,000	820,000,000
Total liabilities at fair value	663,000,000	820,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities	3,988,000,000	2,960,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | U.S. government-sponsored enterprises [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	466,000,000	319,000,000
Marketable securities
Total marketable securities	3,716,000,000	4,852,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Non-U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	84,000,000	168,000,000
Marketable securities
Total marketable securities	1,222,000,000	598,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Non-U.S. government agencies [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	175,000,000	820,000,000
Marketable securities
Total marketable securities	4,630,000,000	4,558,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Debt [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	49,000,000	2,000,000
Marketable securities
Total marketable securities	2,074,000,000	1,631,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-backed and other asset-backed [Member]
Marketable securities
Total marketable securities	27,000,000	38,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Equities [Member]
Marketable securities
Total marketable securities	127,000,000	129,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Other liquid investments [Member]
Marketable securities
Total marketable securities	17,000,000	17,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Foreign exchange contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	115,000,000	212,000,000
Derivative financial instruments
Total derivative financial instruments	437,000,000	448,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	14,000,000	2,000,000
Derivative financial instruments
Total derivative financial instruments	226,000,000	372,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Other - warrants [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets		4,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Cash equivalents - financial instruments [Member]
Input Hierarchy of Items Measured at Fair Value on a Recurring Basis - Footnote Narrative
Par Value Assets Excluded From Fair Value By Input	4,800,000,000	4,600,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Cash [Member]
Input Hierarchy of Items Measured at Fair Value on a Recurring Basis - Footnote Narrative
Par Value Assets Excluded From Fair Value By Input	1,700,000,000	2,100,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities	4,115,000,000	3,089,000,000
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Total assets at fair value	4,115,000,000	3,089,000,000
Derivative financial instruments
Total derivative financial instruments
Total liabilities at fair value
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities	3,988,000,000	2,960,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government-sponsored enterprises [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Non-U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Non-U.S. government agencies [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Corporate Debt [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Mortgage-backed and other asset-backed [Member]
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Equities [Member]
Marketable securities
Total marketable securities	127,000,000	129,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Other liquid investments [Member]
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Foreign exchange contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Derivative financial instruments
Total derivative financial instruments
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Commodity Contract [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Derivative financial instruments
Total derivative financial instruments
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Other - warrants [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	774,000,000	1,309,000,000
Marketable securities
Total marketable securities	11,686,000,000	11,694,000,000
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	126,000,000	199,000,000
Total assets at fair value	12,586,000,000	13,202,000,000
Derivative financial instruments
Total derivative financial instruments	616,000,000	731,000,000
Total liabilities at fair value	616,000,000	731,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government-sponsored enterprises [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	466,000,000	319,000,000
Marketable securities
Total marketable securities	3,716,000,000	4,852,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Non-U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	84,000,000	168,000,000
Marketable securities
Total marketable securities	1,222,000,000	598,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Non-U.S. government agencies [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	175,000,000	820,000,000
Marketable securities
Total marketable securities	4,630,000,000	4,558,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Corporate Debt [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	49,000,000	2,000,000
Marketable securities
Total marketable securities	2,074,000,000	1,631,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Mortgage-backed and other asset-backed [Member]
Marketable securities
Total marketable securities	27,000,000	38,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Equities [Member]
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other liquid investments [Member]
Marketable securities
Total marketable securities	17,000,000	17,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Foreign exchange contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	115,000,000	198,000,000
Derivative financial instruments
Total derivative financial instruments	437,000,000	442,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Commodity Contract [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	11,000,000	1,000,000
Derivative financial instruments
Total derivative financial instruments	179,000,000	289,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other - warrants [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	3,000,000	19,000,000
Total assets at fair value	3,000,000	19,000,000
Derivative financial instruments
Total derivative financial instruments	47,000,000	89,000,000
Total liabilities at fair value	47,000,000	89,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | U.S. government-sponsored enterprises [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Non-U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Non-U.S. government agencies [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Corporate Debt [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Mortgage-backed and other asset-backed [Member]
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Equities [Member]
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Other liquid investments [Member]
Marketable securities
Total marketable securities
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Foreign exchange contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets		14,000,000
Derivative financial instruments
Total derivative financial instruments		6,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Commodity Contract [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	3,000,000	1,000,000
Derivative financial instruments
Total derivative financial instruments	47,000,000	83,000,000
Automotive [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Other - warrants [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets		4,000,000
Financial Services [Member]
Input Hierarchy of Items Measured at Fair Value on a Recurring Basis - Footnote Narrative
Marketable securities	(4,982,000,000)	(3,835,000,000)
Financial Services [Member] | Fair Value, Measurements, Recurring [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	385,000,000	241,000,000
Marketable securities
Total marketable securities	4,982,000,000	3,835,000,000
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	1,270,000,000	1,375,000,000
Total assets at fair value	6,637,000,000	5,451,000,000
Derivative financial instruments
Total derivative financial instruments	390,000,000	299,000,000
Total liabilities at fair value	390,000,000	299,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	5,000,000	1,000,000
Marketable securities
Total marketable securities	1,455,000,000	619,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | U.S. government-sponsored enterprises [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	125,000,000	75,000,000
Marketable securities
Total marketable securities	1,285,000,000	713,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Non-U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	255,000,000	15,000,000
Marketable securities
Total marketable securities	243,000,000	444,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Non-U.S. government agencies [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments		150,000,000
Marketable securities
Total marketable securities	797,000,000	778,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Debt [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities	1,110,000,000	1,186,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-backed and other asset-backed [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	0
Marketable securities
Total marketable securities	85,000,000	88,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Other liquid investments [Member]
Marketable securities
Total marketable securities	7,000,000	7,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Interest rate contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	1,169,000,000	1,196,000,000
Derivative financial instruments
Total derivative financial instruments	301,000,000	237,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Foreign exchange contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	2,000,000	30,000,000
Derivative financial instruments
Total derivative financial instruments	43,000,000	50,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Cross currency interest rate swap contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets		12,000,000
Derivative financial instruments
Total derivative financial instruments	46,000,000	12,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Other Derivatives [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	99,000,000	137,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Cash equivalents - financial instruments [Member]
Input Hierarchy of Items Measured at Fair Value on a Recurring Basis - Footnote Narrative
Par Value Assets Excluded From Fair Value By Input	5,400,000,000	6,000,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Cash [Member]
Input Hierarchy of Items Measured at Fair Value on a Recurring Basis - Footnote Narrative
Par Value Assets Excluded From Fair Value By Input	2,200,000,000	3,000,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	5,000,000	1,000,000
Marketable securities
Total marketable securities	1,455,000,000	619,000,000
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Total assets at fair value	1,460,000,000	620,000,000
Derivative financial instruments
Total derivative financial instruments
Total liabilities at fair value
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	5,000,000	1,000,000
Marketable securities
Total marketable securities	1,455,000,000	619,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. government-sponsored enterprises [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Non-U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Non-U.S. government agencies [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Corporate Debt [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Mortgage-backed and other asset-backed [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	0
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Other liquid investments [Member]
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Interest rate contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Derivative financial instruments
Total derivative financial instruments
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Foreign exchange contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Derivative financial instruments
Total derivative financial instruments
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Cross currency interest rate swap contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Derivative financial instruments
Total derivative financial instruments
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Other Derivatives [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	0	0
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	380,000,000	240,000,000
Marketable securities
Total marketable securities	3,527,000,000	3,216,000,000
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	1,171,000,000	1,238,000,000
Total assets at fair value	5,078,000,000	4,694,000,000
Derivative financial instruments
Total derivative financial instruments	390,000,000	299,000,000
Total liabilities at fair value	390,000,000	299,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government-sponsored enterprises [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	125,000,000	75,000,000
Marketable securities
Total marketable securities	1,285,000,000	713,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Non-U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	255,000,000	15,000,000
Marketable securities
Total marketable securities	243,000,000	444,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Non-U.S. government agencies [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments		150,000,000
Marketable securities
Total marketable securities	797,000,000	778,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Corporate Debt [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities	1,110,000,000	1,186,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Mortgage-backed and other asset-backed [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	0
Marketable securities
Total marketable securities	85,000,000	88,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other liquid investments [Member]
Marketable securities
Total marketable securities	7,000,000	7,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Interest rate contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	1,169,000,000	1,196,000,000
Derivative financial instruments
Total derivative financial instruments	301,000,000	237,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Foreign exchange contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	2,000,000	30,000,000
Derivative financial instruments
Total derivative financial instruments	43,000,000	50,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Cross currency interest rate swap contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets		12,000,000
Derivative financial instruments
Total derivative financial instruments	46,000,000	12,000,000
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other Derivatives [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	0	0
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	99,000,000	137,000,000
Total assets at fair value	99,000,000	137,000,000
Derivative financial instruments
Total derivative financial instruments
Total liabilities at fair value
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | U.S. government-sponsored enterprises [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Non-U.S. government [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Non-U.S. government agencies [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Corporate Debt [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Mortgage-backed and other asset-backed [Member]
Cash equivalents - financial instruments
Total cash equivalents - financial instruments	0
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Other liquid investments [Member]
Marketable securities
Total marketable securities
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Interest rate contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Derivative financial instruments
Total derivative financial instruments
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Foreign exchange contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Derivative financial instruments
Total derivative financial instruments
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Cross currency interest rate swap contracts [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets
Derivative financial instruments
Total derivative financial instruments
Financial Services [Member] | Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Other Derivatives [Member]
Derivative Financial Instrument Assets [Abstract]
Derivative Assets	99,000,000	137,000,000
Ford Credit [Member] | Intersector Eliminations [Member]
Input Hierarchy of Items Measured at Fair Value on a Recurring Basis - Footnote Narrative
Marketable securities		201,000,000
Ford Credit [Member] | Intersector Eliminations [Member] | Fair Value, Measurements, Recurring [Member]
Marketable securities
Total marketable securities		$ 201,000,000