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Brighthouse Templeton International Bond Portfolio Annual Fund Operating Expenses - Brighthouse Templeton International Bond Portfolio
Dec. 31, 2025
Prospectus [Line Items]  
Fee Waiver or Reimbursement over Assets, Date of Termination <span style="font-family:Times New Roman;font-size:8pt;">April 30, 2027</span>
Class A  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.60%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.13%
Expenses (as a percentage of Assets) 0.73%
Fee Waiver or Reimbursement (0.04%) [1]
Net Expenses (as a percentage of Assets) 0.69%
Class B  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.60%
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.13%
Expenses (as a percentage of Assets) 0.98%
Fee Waiver or Reimbursement (0.04%) [1]
Net Expenses (as a percentage of Assets) 0.94%
[1] Brighthouse Investment Advisers, LLC has contractually agreed, for the period May 1, 2026 through April 30, 2027, to reduce the Management Fee for each class of the Portfolio. This arrangement may be modified or discontinued prior to April 30, 2027, only with the approval of the Board of Trustees of the Portfolio.