Brighthouse Balanced Plus Portfolio Expense Example - Brighthouse Balanced Plus Portfolio - Class B	Dec. 31, 2025 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 119
Expense Example, with Redemption, 3 Years	372
Expense Example, with Redemption, 5 Years	644
Expense Example, with Redemption, 10 Years	$ 1,420

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