Available-for-sale Securities, Amortized Cost Basis Other Than Investment Grade

No definition available.

Name:	axaeq_AvailableForSaleSecuritiesAmortizedCostBasisOtherThanInvestmentGrade
Namespace Prefix:	axaeq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The carrying value of fixed maturities that were non-income producing for the twelve months.

+ References

No definition available.

+ Details

Name:	axaeq_AvailableForSaleSecuritiesContinuousNonIncomeProdcuingPosition12Months
Namespace Prefix:	axaeq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Investment disclosure of credit risk exposure to Debt securities in single issuer of less than a stated percentage of Company's total investments.

+ References

No definition available.

+ Details

Name:	axaeq_DebtSecuritiesExposureInSingleIssuerGreaterThanStatedPercentageOfTotalInvestments
Namespace Prefix:	axaeq_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Investment disclosure of credit risk exposure to Debt securities in single issuer of Company's total investments.

+ References

No definition available.

+ Details

Name:	axaeq_DebtSecuritiesExposureInSingleIssuerOfTotalInvestments
Namespace Prefix:	axaeq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Disposal Group, Held-for-sale, Number Of Real Estate Joint Ventures Sold

+ References

No definition available.

+ Details

Name:	axaeq_DisposalGroupHeldforsaleNumberOfRealEstateJointVenturesSold
Namespace Prefix:	axaeq_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Gain (Loss) On Disposition Of Joint Venture

+ References

No definition available.

+ Details

Name:	axaeq_GainLossOnDispositionOfJointVenture
Namespace Prefix:	axaeq_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Other than investment grade Securities as a percentage of aggregate amortized cost of fixed maturities held by the Company.

+ References

No definition available.

+ Details

Name:	axaeq_PercentageOfAvailableForSaleSecurities
Namespace Prefix:	axaeq_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Reduction In Long Term Debt Due To Sale Of Joint Venture

+ References

No definition available.

+ Details

Name:	axaeq_ReductionInLongTermDebtDueToSaleOfJointVenture
Namespace Prefix:	axaeq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Scenarios Where Coverage Needed, Worst Case, Percent

+ References

No definition available.

+ Details

Name:	axaeq_ScenariosWhereCoverageNeededWorstCasePercent
Namespace Prefix:	axaeq_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the carrying value of Other equity investments included the General Account's investment in Separate Accounts

+ References

No definition available.

+ Details

Name:	axaeq_SeparateAccountEquityInvestmentCarryingValue
Namespace Prefix:	axaeq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

No definition available.

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesAmortizedCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

+ References

No definition available.

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

+ References

No definition available.

+ Details

Name:	us-gaap_InterestRateDerivativeAssetsAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of expenses related to the generation of investment income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.9)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.2)
-URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263

+ Details

Name:	us-gaap_InvestmentIncomeInvestmentExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Aggregate cash proceeds received from a combination of transactions in which noncurrent assets are sold, which may include the sale of a business, an investment in an affiliate (including an equity method investee), property, plant and equipment and intangible assets. Excludes sales of trading, available-for-sale, and held-to-maturity securities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=49176635&loc=d3e9760-107771

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13(1))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(m)(1)(a)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_SecuritiesSoldUnderAgreementsToRepurchase
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.4)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_TradingSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, before counterparty netting, of cash proceeds received in transfers of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109247956&loc=SL51823488-111719

+ Details

Name:	us-gaap_TransferOfFinancialAssetsAccountedForAsSalesCashProceedsReceivedForAssetsDerecognizedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109247956&loc=SL51823488-111719

+ Details

Name:	us-gaap_TransferOfFinancialAssetsAccountedForAsSalesFairValueOfDerecognizedAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

Name:	us-gaap_UnrealizedGainLossOnDerivatives
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_TreasuryLockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=axaeq_OtherThanInvestmentGradeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_FixedMaturitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

INVESTMENTS - TEXTUAL (Details) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
INVESTMENTS - TEXTUAL (Details) $ in Millions	Mar. 31, 2018 USD ($) joint_venture	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Debt Securities, Available-for-sale [Line Items]
Scenarios Where Coverage Needed, Worst Case, Percent				2.00%
Securities sold under agreements to repurchase		$ 1,850.0		$ 1,850.0		$ 1,887.0
Debt securities exposure in single issuer greater than stated percentage of total investments		0.50%		0.50%
Available-for-sale securities, amortized cost basis						34,988.0
Gross unrealized losses of twelve months or more		$ 419.0		$ 419.0		224.0
Carrying value of fixed maturities non-income producing		2.0		2.0
Investment expenses		13.0	$ 10.0	32.0	$ 29.0
Trading securities, at fair value		13,900.0		13,900.0		12,628.0
Separate account equity investment carrying value		50.0		50.0		49.0
Number of real estate joint ventures sold \| joint_venture	2
Total purchase price	$ 143.0
Pre-tax loss on sale of real estate joint venture	0.2
Elimination of long-term debt	$ 203.0
Derecognized US Treasury securities		3,655.0		3,655.0			$ 3,905.0
Proceeds from return swap contract							$ 3,906.0
Fair value of return swap contracts		34.0		34.0
Treasury Lock
Debt Securities, Available-for-sale [Line Items]
Unrealized gain (loss) related to TIPS				95.0		86.0
Commercial Mortgage Loans
Debt Securities, Available-for-sale [Line Items]
Mortgage loans classified as nonaccrual		19.0		19.0		19.0
Other Than Investment Grade
Debt Securities, Available-for-sale [Line Items]
Available-for-sale securities, amortized cost		$ 1,253.0		$ 1,253.0		$ 1,309.0
Percentage of available for sale securities		3.10%		3.10%		3.80%
Public corporate
Debt Securities, Available-for-sale [Line Items]
Debt securities exposure in single issuer of total investments		$ 200.0		$ 200.0		$ 182.0
Available-for-sale securities, amortized cost basis						13,645.0
Gross unrealized losses of twelve months or more		30.0		30.0		16.0
Fixed Maturities
Debt Securities, Available-for-sale [Line Items]
Available-for-sale securities, amortized cost basis		$ 40,638.0		40,638.0		34,831.0
Fixed Maturities \| Other Than Investment Grade
Debt Securities, Available-for-sale [Line Items]
Net unrealized losses				$ (13.0)		$ (5.0)