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GOODWILL (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 13,568
Translation	130
Ending balance	13,698
Electrical Products [Member]
Goodwill [Roll Forward]
Beginning balance	6,678
Translation	77
Ending balance	6,755
Electrical Systems and Services [Member]
Goodwill [Roll Forward]
Beginning balance	4,311
Translation	42
Ending balance	4,353
Hydraulics [Member]
Goodwill [Roll Forward]
Beginning balance	1,257
Translation	5
Ending balance	1,262
Aerospace [Member]
Goodwill [Roll Forward]
Beginning balance	947
Translation	4
Ending balance	951
Vehicle [Member]
Goodwill [Roll Forward]
Beginning balance	294
Translation	1
Ending balance	295
eMobility [Member]
Goodwill [Roll Forward]
Beginning balance	81
Translation	1
Ending balance	$ 82

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

+ Details

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Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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X

- Details

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- Details

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X

- Details

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X

- Details

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X

- Details

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X

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