Amount classified as debt attributable to disposal group held for sale or disposed of.

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Gross accounts receivable under factoring facilities qualify as sales.

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Operating Expense, Plant Maintenance, Frequency, Years

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[Line Items] for Organization, Consolidation and Presentation of Financial Statements [Table]

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No definition available.

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Planned major maintenance

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Cash Flows between a transferor and a transferee attributable to newly transferred assets related to either a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets).

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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No definition available.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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The carrying amount (fair value) as of the balance sheet date of the transferor's interests in transferred financial assets (typically securitized receivables, generally not involved in the collection of principal) following transfer of significant portions of such financial instruments to other parties. Such interests could be ancillary cash flows and interest-only strips.

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The amount of LIFO (last in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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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.

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No definition available.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Reflects, by transferred financial asset type, the amount of sales proceeds in excess of or deficient from the sum of the carrying amounts of transferred financial assets plus transaction costs, including those transactions in which the seller/transferor has continuing involvement with the financial assets that have been transferred.

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Basis of Presentation and Summary of Significant Accounting Policies Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jan. 01, 2017
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Property, plant and equipment held for sale		$ 1,200
Debt held for sale		1,700
Portion of inventory under LIFO method	$ 900	735
Restricted cash	786	804
Debt	11,185	11,119
Fair value of long-term debt	11,500	11,200
Restricted cash
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Restricted cash	594	686
Automotive Segment
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Restricted cash	4	2
Debt	3,470	3,259
Research and development expense	195	192	$ 189
Gross amount of transferred receivables under factoring arrangements	641	487
Gross amount of transferred receivables under factoring arrangements qualifying as sales	635	485
Proceeds from transferred receivables under factoring arrangements qualifying as sales	1,800	1,600	1,600
Expenses associated with transferred receivables under factoring arrangements	15	12	9
Energy Segment
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Restricted cash	0	0
Debt	1,166	1,165
Planned major maintenance	$ 83	$ 38	$ 109
Equity
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Effect of adopting new accounting principle on consolidated financial statements				$ 47
Nitrogenous fertilizer manufacturing \| Maximum \| Energy Segment
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Planned major maintenance, frequency (in years)	3 years
Nitrogenous fertilizer manufacturing \| Minimum \| Energy Segment
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Planned major maintenance, frequency (in years)	2 years
Petroleum refineries \| Maximum \| Energy Segment
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Planned major maintenance, frequency (in years)	5 years
Petroleum refineries \| Minimum \| Energy Segment
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Planned major maintenance, frequency (in years)	4 years