v3.26.3
Condensed Consolidated Statements of Assets and Liabilities (Unaudited) (Parenthetical) - Blackstone Infrastructure Strategies (TE) L.P. - USD ($)
 9 Months Ended 12 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Investment owned, cost $ 5,529,843,000 $ 3,324,540
Units outstanding (in shares) 205,439,267 129,371,828
Blackstone Infrastructure Strategies (TE) L.P.    
Investment owned, cost $ 1,548,148,000 $ 944,504,000
Units outstanding (in shares) 57,814,023 36,835,405
Series I Units | Blackstone Infrastructure Strategies (TE) L.P.    
Units issued (in shares) [1] 27,960,346 18,513,309
Units outstanding (in shares) [1] 27,960,346 18,513,309
Common Stock, Shares Authorized, Unlimited [Fixed List] Unlimited Unlimited
Series II Units | Blackstone Infrastructure Strategies (TE) L.P.    
Units issued (in shares) [1] 0 0
Units outstanding (in shares) [1] 0 0
Common Stock, Shares Authorized, Unlimited [Fixed List] Unlimited Unlimited
Series III Units | Blackstone Infrastructure Strategies (TE) L.P.    
Units issued (in shares) [1] 0 0
Units outstanding (in shares) [1] 0 0
Common Stock, Shares Authorized, Unlimited [Fixed List] Unlimited Unlimited
Class S-TE Units | Blackstone Infrastructure Strategies (TE) L.P.    
Units issued (in shares) 21,715,564 14,881,324
Units outstanding (in shares) 21,715,564 14,881,324
Common Stock, Shares Authorized, Unlimited [Fixed List] Unlimited Unlimited
Class D-TE Units    
Units outstanding (in shares)   0
Class D-TE Units | Blackstone Infrastructure Strategies (TE) L.P.    
Units issued (in shares) 0 0
Units outstanding (in shares) 0  
Common Stock, Shares Authorized, Unlimited [Fixed List] Unlimited Unlimited
Class I- TE-ACC Units | Blackstone Infrastructure Strategies (TE) L.P.    
Units issued (in shares) 3,220,869 1,030,909
Units outstanding (in shares) 3,220,869 1,030,909
Common Stock, Shares Authorized, Unlimited [Fixed List] Unlimited Unlimited
Class S- TE-ACC Units | Blackstone Infrastructure Strategies (TE) L.P.    
Units issued (in shares) 4,917,244 2,409,863
Units outstanding (in shares) 4,917,244 2,409,863
Common Stock, Shares Authorized, Unlimited [Fixed List] Unlimited Unlimited
Class D- TE-ACC Units | Blackstone Infrastructure Strategies (TE) L.P.    
Units issued (in shares) 0 0
Units outstanding (in shares) 0 0
Common Stock, Shares Authorized, Unlimited [Fixed List] Unlimited Unlimited
[1] On March 6, 2026, the Feeder redesignated existing Class I-TE Units as Class I-Series I-TE Units and designated two new series of Class I Units, Class I-Series II-TE Units and Class I-Series III-TE Units.