Net Assets - Schedule of Transactions in Units (Details) - shares
|
3 Months Ended |
9 Months Ended |
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
177,966,139
|
79,784,597
|
129,371,828
|
4,000
|
| Units issued (in shares) |
26,991,304
|
23,155,145
|
74,863,935
|
102,824,915
|
| Distributions reinvested (in shares) |
669,850
|
327,694
|
1,807,072
|
446,682
|
| Conversion of Units Between Classes or Series (in shares) |
(8,681)
|
(1,228)
|
(9,646)
|
(1,267)
|
| Redemption of units (in shares) |
(179,345)
|
|
(593,922)
|
(8,122)
|
| Ending units outstanding (in shares) |
205,439,267
|
103,266,208
|
205,439,267
|
103,266,208
|
| Blackstone Infrastructure Strategies (TE) L.P. |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
50,095,251
|
21,052,114
|
36,835,405
|
0
|
| Units issued (in shares) |
7,484,655
|
6,642,146
|
20,318,169
|
27,620,524
|
| Distributions reinvested (in shares) |
261,858
|
126,639
|
725,365
|
171,525
|
| Conversion of Units Between Classes or Series (in shares) |
(2,041)
|
1,087
|
13,789
|
35,091
|
| Redemption of units (in shares) |
(25,700)
|
|
(78,705)
|
(5,154)
|
| Ending units outstanding (in shares) |
57,814,023
|
27,821,986
|
57,814,023
|
27,821,986
|
| BXINFRA Aggregator (CYM) L.P. |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
187,645,825
|
87,520,062
|
138,551,291
|
0
|
| Units issued (in shares) |
28,090,807
|
24,171,718
|
77,779,171
|
111,699,923
|
| Redemption of units (in shares) |
(239,246)
|
(17,483)
|
(833,076)
|
(25,626)
|
| Ending units outstanding (in shares) |
215,497,386
|
111,674,297
|
215,497,386
|
111,674,297
|
| Series I-TE Units | Blackstone Infrastructure Strategies (TE) L.P. |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
24,584,913
|
10,041,484
|
18,513,309
|
0
|
| Units issued (in shares) |
3,160,840
|
3,123,384
|
9,116,008
|
13,204,289
|
| Distributions reinvested (in shares) |
137,639
|
57,054
|
378,670
|
76,857
|
| Conversion of Units Between Classes or Series (in shares) |
76,954
|
(93,530)
|
(26,357)
|
(152,754)
|
| Redemption of units (in shares) |
0
|
|
(21,284)
|
0
|
| Ending units outstanding (in shares) |
27,960,346
|
13,128,392
|
27,960,346
|
13,128,392
|
| Class S-TE Units | Blackstone Infrastructure Strategies (TE) L.P. |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
19,257,518
|
10,139,171
|
14,881,324
|
0
|
| Units issued (in shares) |
2,465,284
|
2,211,635
|
6,662,462
|
12,538,655
|
| Distributions reinvested (in shares) |
124,219
|
69,585
|
346,695
|
94,668
|
| Conversion of Units Between Classes or Series (in shares) |
(105,757)
|
(13,157)
|
(127,486)
|
(226,089)
|
| Redemption of units (in shares) |
(25,700)
|
|
(47,431)
|
0
|
| Ending units outstanding (in shares) |
21,715,564
|
12,407,234
|
21,715,564
|
12,407,234
|
| Class I- TE-ACC Units | Blackstone Infrastructure Strategies (TE) L.P. |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
2,153,054
|
226,327
|
1,030,909
|
0
|
| Units issued (in shares) |
1,037,799
|
444,455
|
2,023,084
|
603,650
|
| Distributions reinvested (in shares) |
0
|
0
|
0
|
0
|
| Conversion of Units Between Classes or Series (in shares) |
30,016
|
98,621
|
166,876
|
165,753
|
| Redemption of units (in shares) |
0
|
|
0
|
0
|
| Ending units outstanding (in shares) |
3,220,869
|
769,403
|
3,220,869
|
769,403
|
| Class S- TE-ACC Units | Blackstone Infrastructure Strategies (TE) L.P. |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
4,099,766
|
645,132
|
2,409,863
|
0
|
| Units issued (in shares) |
820,732
|
862,672
|
2,516,615
|
1,273,930
|
| Distributions reinvested (in shares) |
0
|
0
|
0
|
0
|
| Conversion of Units Between Classes or Series (in shares) |
(3,254)
|
9,153
|
756
|
248,181
|
| Redemption of units (in shares) |
0
|
|
(9,990)
|
(5,154)
|
| Ending units outstanding (in shares) |
4,917,244
|
1,516,957
|
4,917,244
|
1,516,957
|
| Series I Units |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
117,372,541
|
49,847,385
|
83,138,103
|
4,000
|
| Units issued (in shares) |
19,286,148
|
14,423,529
|
53,219,035
|
64,197,848
|
| Distributions reinvested (in shares) |
293,746
|
124,870
|
761,145
|
169,106
|
| Conversion of Units Between Classes or Series (in shares) |
619,932
|
0
|
698,248
|
29,984
|
| Redemption of units (in shares) |
(69,655)
|
|
(313,819)
|
(5,154)
|
| Ending units outstanding (in shares) |
137,502,712
|
64,395,784
|
137,502,712
|
64,395,784
|
| Series I Units | BXINFRA Aggregator (CYM) L.P. |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
187,645,825
|
87,520,062
|
138,551,291
|
0
|
| Units issued (in shares) |
27,090,854
|
24,171,718
|
76,779,218
|
111,699,923
|
| Redemption of units (in shares) |
(239,246)
|
(17,483)
|
(833,076)
|
(25,626)
|
| Ending units outstanding (in shares) |
214,497,433
|
111,674,297
|
214,497,433
|
111,674,297
|
| Series II Units |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
|
0
|
0
|
0
|
| Units issued (in shares) |
1,000,293
|
0
|
1,000,293
|
0
|
| Distributions reinvested (in shares) |
0
|
0
|
0
|
0
|
| Conversion of Units Between Classes or Series (in shares) |
0
|
0
|
0
|
0
|
| Redemption of units (in shares) |
0
|
|
0
|
0
|
| Ending units outstanding (in shares) |
1,000,293
|
0
|
1,000,293
|
0
|
| Series II Units | BXINFRA Aggregator (CYM) L.P. |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
0
|
0
|
0
|
0
|
| Units issued (in shares) |
999,953
|
0
|
999,953
|
0
|
| Redemption of units (in shares) |
0
|
0
|
0
|
0
|
| Ending units outstanding (in shares) |
999,953
|
0
|
999,953
|
0
|
| Class S Units |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
54,252,335
|
27,875,676
|
41,962,043
|
0
|
| Units issued (in shares) |
6,399,871
|
7,774,946
|
18,248,157
|
35,615,818
|
| Distributions reinvested (in shares) |
332,036
|
186,884
|
929,927
|
254,679
|
| Conversion of Units Between Classes or Series (in shares) |
(628,613)
|
(371,650)
|
(713,801)
|
(401,673)
|
| Redemption of units (in shares) |
(109,690)
|
|
(180,387)
|
(2,968)
|
| Ending units outstanding (in shares) |
60,245,939
|
35,465,856
|
60,245,939
|
35,465,856
|
| Class D Units |
|
|
|
|
| Limited Partners' Capital Account [Roll Forward] |
|
|
|
|
| Beginning units outstanding (in shares) |
6,341,263
|
2,061,536
|
4,271,682
|
0
|
| Units issued (in shares) |
304,992
|
956,670
|
2,396,450
|
3,011,249
|
| Distributions reinvested (in shares) |
44,068
|
15,940
|
116,000
|
22,897
|
| Conversion of Units Between Classes or Series (in shares) |
0
|
370,422
|
5,907
|
370,422
|
| Redemption of units (in shares) |
0
|
|
(99,716)
|
0
|
| Ending units outstanding (in shares) |
6,690,323
|
3,404,568
|
6,690,323
|
3,404,568
|