XML 88 R75.htm IDEA: XBRL DOCUMENT
v3.23.1

Investments (Other Invested Assets - Narrative) (Details) | Mar. 31, 2023
--- | ---
Minimum |
Derivative [Line Items] |
Percentage of other invested assets comprised of freestanding derivatives with positive estimated fair values | 80.00%

X
- Definition Percentage of other invested assets that is comprised of freestanding derivatives with positive estimated fair values. + References No definition available. + Details
Name: | bhf_PercentageOfOtherInvestedAssetsComprisedOfFreestandingDerivativesWithPositiveEstimatedFairValues
Namespace Prefix: | bhf_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480237/815-40-50-5 + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |