The number of general partner units outstanding.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

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Period Type:	instant

- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

+ References

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Period Type:	duration

- References

No definition available.

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Business Description Organization and Basis of Presentation (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2018 shares	Jun. 30, 2018 shares
General partnership information [Abstract]
General partnership interest in Company (percent)		1.00%
AB
General partnership information [Abstract]
Limited partners or members ownership interest in company (percent)		100.00%
EQH \| AXA
General partnership information [Abstract]
General partnership interest in Company (percent)	71.90%
AB Holding \| EQH
General partnership information [Abstract]
General partnership interest in Company (percent)	3.80%
AB Holding \| AB
General partnership information [Abstract]
General Partnership number of general partnership units owned in Holding Company (in units)	100,000	100,000
General partnership interest in Company (percent)		1.00%
Limited partners or members ownership interest in company (percent)		35.90%
EQH and its subsidiaries \| AB
General partnership information [Abstract]
Limited partners or members ownership interest in company (percent)		63.30%
Unaffiliated holders \| AB
General partnership information [Abstract]
Limited partners or members ownership interest in company (percent)		0.80%
AB \| EQH and its subsidiaries
General partnership information [Abstract]
General partnership interest in Company (percent)		64.70%