Select [Member] Annual Fund Operating Expenses - Select - FEDFUND	Oct. 31, 2025
Prospectus [Line Items]
Fee Waiver or Reimbursement over Assets, Date of Termination	June 30, 2027February 28, 2027
SELECT
Prospectus [Line Items]
Management Fees (as a percentage of Assets)	0.18%
Distribution and Service (12b-1) Fees	0.35%
Component1 Other Expenses	0.50%
Other Expenses (as a percentage of Assets):	0.50%
Expenses (as a percentage of Assets)	1.03%
Fee Waiver or Reimbursement	(0.03%)	[1],[2]
Net Expenses (as a percentage of Assets)	1.00%	[1],[2]

[1] As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 30, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.17% of average daily net assets through June 30, 2027. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.

[2] As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 30, the Fund’s distributor and the Financial Intermediary party to the waiver agreement have contractually agreed to waive Distribution Fees and/or Shareholder Servicing Fees so that the Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements of the Select Shares do not exceed 1.00% of average daily net assets through February 28, 2027. The agreement renews automatically for successive one year periods and may be terminated by any party upon written notice 75 days prior to the commencement of a successive one year period.