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Segment Reporting Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 2,742	$ 2,585
Federal-Mogul | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	2,056	1,948
Icahn Automotive Group | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	686	637
Other revenues from operations | Energy Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,537	1,507
Petroleum products | Other revenues from operations | Energy Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,457	1,422
Nitrogen fertilizer products | Other revenues from operations | Energy Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	80	85
Automotive parts to original equipment manufacturers and servicers | Net sales | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,526	1,386
Automotive parts to original equipment manufacturers and servicers | Net sales | Federal-Mogul | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,526	1,386
Automotive parts to original equipment manufacturers and servicers | Net sales | Icahn Automotive Group | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Aftermarket automotive parts and tires | Net sales | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,072	1,091
Aftermarket automotive parts and tires | Net sales | Federal-Mogul | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	530	562
Aftermarket automotive parts and tires | Net sales | Icahn Automotive Group | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	542	529
Automotive services labor | Other revenues from operations | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	128	108
Automotive services labor | Other revenues from operations | Federal-Mogul | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Automotive services labor | Other revenues from operations | Icahn Automotive Group | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	128	108
Other net sales | Net sales | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	16	0
Other net sales | Net sales | Federal-Mogul | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	0	0
Other net sales | Net sales | Icahn Automotive Group | Automotive Segment
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 16	$ 0

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+ References

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 32
-Paragraph 2A
-URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130539-203045

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045

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