X0101 24F-2NT LIVE 0000844779 XXXXXXXX false false N-1A BLACKROCK FUNDS 100 Bellevue Parkway Wilmington DE X1 19809 iShares U.S. Intermediate Credit Bond Index Fund S000075204 true iShares U.S. Intermediate Government Bond Index Fund S000075206 true iShares U.S. Long Credit Bond Index Fund S000075203 true iShares U.S. Long Government Bond Index Fund S000075205 true iShares U.S. Securitized Bond Index Fund S000075207 true BlackRock China A Opportunities Fund S000063942 true 811-05742 033-26305 10/31/2022 false 16662622182.00 2452115957.00 1576789051.00 4028905008.00 12633717174.00 0.00 0.0001102 1392235.63 0.00 0.00 0.00 1392235.63 /s/ Chris Woodruff Chris Woodruff, Assistant Treasurer 01/23/2023