Debt and Commitments - Debt Instruments Convertible Notes (Details) (Convertible Notes [Member], Automotive [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Convertible Notes Narrative [Abstract]
Debt Instrument, Face Amount	$ 0us-gaap_DebtInstrumentFaceAmount	$ 908us-gaap_DebtInstrumentFaceAmount
Convertible 2036 Notes [Member]
Convertible Notes Narrative [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Debt Instrument, Face Amount	24
Long-term Debt, Fair Value	43
Gain Loss on Repurchase of Debt Instrument Fair Value to Carrying Amount	(5)
Convertible 2016 Notes [Member]
Convertible Notes Narrative [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Debt Instrument, Face Amount	882
Stock Issued During Period, Shares, Treasury Stock Reissued	103
Debt Instrument, Convertible Carrying Amount	805
Gain Loss on Repurchase of Debt Instrument Fair Value to Carrying Amount	(126)
Treasury Stock Reissued at Lower than Repurchase Price	66
Debt Instrument Face Value Redeemed for Cash	$ (1)

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The carrying amount of the convertible note, net of unamortized premium/(discount) which may be settled in share upon conversion.

+ References

No definition available.

+ Details

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- Definition

Debt Instrument Face Value Redeemed for Cash

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Amount of gain/(loss) from the difference between the fair value of debt instrument and the net carrying amount of the convertible debt at time of conversion.

+ References

No definition available.

+ Details

Name:	f_GainLossonRepurchaseofDebtInstrumentFairValuetoCarryingAmount
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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

+ Details

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- Definition

In cases when treasury stock is reissued at a price lower than the cost to repurchase, the excess difference between the selling price and cost to repurchase is charged against retained earnings (assuming that all APIC arising from treasury stock transactions has first been exhausted).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 31

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 30

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=6405736&loc=d3e23086-112654

+ Details

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Balance Type:	debit
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