XML 98 R85.htm IDEA: XBRL DOCUMENT
v3.23.1

Derivatives (Derivatives - Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
Maximum Length of Time Hedged in Cash Flow Hedge | 1 year | 1 year
Derivative AOCI associated with Cash Flow Hedges Pre Tax | $ 598 | $ 638

X
- Definition Derivative AOCI associated with Cash Flow Hedges Pre Tax + References No definition available. + Details
Name: | bhf_DerivativeAOCIAssociatedWithCashFlowHedgesPreTax
Namespace Prefix: | bhf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 30 -Topic 815 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480870/815-30-50-1 + Details
Name: | us-gaap_MaximumLengthOfTimeHedgedInCashFlowHedge1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration