Condensed Financial Information (Parent Company) (Investment in Subsidiaries Footnote) (Details) - Parent Company - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Capital Contributions To Subsidiaries	$ 0	$ 0	$ 75
Brighthouse Life Insurance Co of NY
Condensed Financial Statements, Captions [Line Items]
Capital Contributions To Subsidiaries			$ 75

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.

No definition available.

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