SEGMENTED INFORMATION - Schedule of Adjusted EBITDA and Funds From Operations (Details) - USD ($) $ in Millions |
3 Months Ended |
6 Months Ended |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
$ 1,710
|
$ 1,692
|
$ 3,224
|
$ 3,272
|
| Other income |
|
246
|
62
|
384
|
232
|
| Direct operating costs |
[1] |
(783)
|
(699)
|
(1,562)
|
(1,374)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
113
|
191
|
237
|
306
|
| Management service costs |
|
(77)
|
(56)
|
(150)
|
(105)
|
| Interest expense |
|
(658)
|
(624)
|
(1,297)
|
(1,233)
|
| Current income tax |
|
46
|
16
|
34
|
57
|
| Preferred limited partners equity |
|
(8)
|
(9)
|
(15)
|
(17)
|
| Preferred equity |
|
(8)
|
(7)
|
(16)
|
(14)
|
| Perpetual subordinated notes |
|
(10)
|
(10)
|
(20)
|
(20)
|
| Share of interest and cash taxes from equity-accounted investments |
|
(20)
|
(31)
|
(46)
|
(64)
|
| Share of Funds From Operations attributable to non-controlling interests |
|
(130)
|
(154)
|
23
|
(354)
|
| Depreciation |
|
(558)
|
(609)
|
(1,106)
|
(1,192)
|
| Foreign exchange and financial instrument gain |
|
4
|
255
|
224
|
504
|
| Deferred income tax recovery |
|
(41)
|
181
|
6
|
226
|
| Other |
|
(221)
|
(61)
|
(405)
|
(322)
|
| Share of losses from equity-accounted investments |
|
(48)
|
(217)
|
(125)
|
(315)
|
| Net income (loss) attributable to non-controlling interests |
|
230
|
(32)
|
168
|
104
|
| Net loss attributable to Unitholders |
|
(213)
|
(112)
|
(442)
|
(309)
|
| Share of earnings (losses) from equity-accounted investments |
|
45
|
(57)
|
66
|
(73)
|
| Hydroelectric |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
886
|
720
|
1,598
|
1,428
|
| Wind |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
349
|
435
|
739
|
877
|
| Utility-scale solar |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
316
|
338
|
595
|
636
|
| Distributed energy & storage |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
159
|
199
|
292
|
331
|
| Attributable to Unitholders |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
1,018
|
974
|
1,957
|
1,831
|
| Other income |
|
294
|
133
|
602
|
318
|
| Direct operating costs |
|
(481)
|
(407)
|
(972)
|
(824)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Adjusted EBITDA |
|
831
|
700
|
1,587
|
1,325
|
| Management service costs |
|
(77)
|
(56)
|
(150)
|
(105)
|
| Interest expense |
|
(274)
|
(238)
|
(549)
|
(453)
|
| Current income tax |
|
(33)
|
(9)
|
(41)
|
(30)
|
| Preferred limited partners equity |
|
(8)
|
(9)
|
(15)
|
(17)
|
| Preferred equity |
|
(8)
|
(7)
|
(16)
|
(14)
|
| Perpetual subordinated notes |
|
(10)
|
(10)
|
(20)
|
(20)
|
| Share of interest and cash taxes from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Share of Funds From Operations attributable to non-controlling interests |
|
0
|
0
|
0
|
0
|
| Funds From Operations |
|
421
|
371
|
796
|
686
|
| Attributable to Unitholders | Hydroelectric | North America |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
329
|
344
|
630
|
632
|
| Other income |
|
170
|
4
|
247
|
23
|
| Direct operating costs |
|
(142)
|
(121)
|
(299)
|
(256)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Adjusted EBITDA |
|
357
|
227
|
578
|
399
|
| Management service costs |
|
0
|
0
|
0
|
0
|
| Interest expense |
|
(66)
|
(68)
|
(136)
|
(135)
|
| Current income tax |
|
(12)
|
(1)
|
(12)
|
(3)
|
| Preferred limited partners equity |
|
0
|
0
|
0
|
0
|
| Preferred equity |
|
0
|
0
|
0
|
0
|
| Perpetual subordinated notes |
|
0
|
0
|
0
|
0
|
| Share of interest and cash taxes from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Share of Funds From Operations attributable to non-controlling interests |
|
0
|
0
|
0
|
0
|
| Funds From Operations |
|
279
|
158
|
430
|
261
|
| Attributable to Unitholders | Hydroelectric | Brazil |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
55
|
52
|
121
|
100
|
| Other income |
|
3
|
2
|
5
|
5
|
| Direct operating costs |
|
(20)
|
(17)
|
(37)
|
(32)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Adjusted EBITDA |
|
38
|
37
|
89
|
73
|
| Management service costs |
|
0
|
0
|
0
|
0
|
| Interest expense |
|
(1)
|
(3)
|
(3)
|
(6)
|
| Current income tax |
|
(2)
|
(1)
|
(5)
|
(4)
|
| Preferred limited partners equity |
|
0
|
0
|
0
|
0
|
| Preferred equity |
|
0
|
0
|
0
|
0
|
| Perpetual subordinated notes |
|
0
|
0
|
0
|
0
|
| Share of interest and cash taxes from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Share of Funds From Operations attributable to non-controlling interests |
|
0
|
0
|
0
|
0
|
| Funds From Operations |
|
35
|
33
|
81
|
63
|
| Attributable to Unitholders | Hydroelectric | Colombia |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
159
|
61
|
277
|
138
|
| Other income |
|
2
|
1
|
2
|
1
|
| Direct operating costs |
|
(68)
|
(25)
|
(117)
|
(49)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Adjusted EBITDA |
|
93
|
37
|
162
|
90
|
| Management service costs |
|
0
|
0
|
0
|
0
|
| Interest expense |
|
(65)
|
(22)
|
(120)
|
(39)
|
| Current income tax |
|
(6)
|
(1)
|
(7)
|
(7)
|
| Preferred limited partners equity |
|
0
|
0
|
0
|
0
|
| Preferred equity |
|
0
|
0
|
0
|
0
|
| Perpetual subordinated notes |
|
0
|
0
|
0
|
0
|
| Share of interest and cash taxes from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Share of Funds From Operations attributable to non-controlling interests |
|
0
|
0
|
0
|
0
|
| Funds From Operations |
|
22
|
14
|
35
|
44
|
| Attributable to Unitholders | Wind |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
141
|
146
|
301
|
311
|
| Other income |
|
9
|
38
|
75
|
65
|
| Direct operating costs |
|
(62)
|
(58)
|
(125)
|
(121)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Adjusted EBITDA |
|
88
|
126
|
251
|
255
|
| Management service costs |
|
0
|
0
|
0
|
0
|
| Interest expense |
|
(36)
|
(41)
|
(75)
|
(80)
|
| Current income tax |
|
(2)
|
(1)
|
(7)
|
(5)
|
| Preferred limited partners equity |
|
0
|
0
|
0
|
0
|
| Preferred equity |
|
0
|
0
|
0
|
0
|
| Perpetual subordinated notes |
|
0
|
0
|
0
|
0
|
| Share of interest and cash taxes from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Share of Funds From Operations attributable to non-controlling interests |
|
0
|
0
|
0
|
0
|
| Funds From Operations |
|
50
|
84
|
169
|
170
|
| Attributable to Unitholders | Utility-scale solar |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
137
|
126
|
234
|
222
|
| Other income |
|
52
|
49
|
150
|
79
|
| Direct operating costs |
|
(33)
|
(40)
|
(71)
|
(71)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Adjusted EBITDA |
|
156
|
135
|
313
|
230
|
| Management service costs |
|
0
|
0
|
0
|
0
|
| Interest expense |
|
(32)
|
(33)
|
(65)
|
(63)
|
| Current income tax |
|
(8)
|
(2)
|
(6)
|
(4)
|
| Preferred limited partners equity |
|
0
|
0
|
0
|
0
|
| Preferred equity |
|
0
|
0
|
0
|
0
|
| Perpetual subordinated notes |
|
0
|
0
|
0
|
0
|
| Share of interest and cash taxes from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Share of Funds From Operations attributable to non-controlling interests |
|
0
|
0
|
0
|
0
|
| Funds From Operations |
|
116
|
100
|
242
|
163
|
| Attributable to Unitholders | Distributed energy & storage |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
44
|
67
|
88
|
120
|
| Other income |
|
23
|
11
|
41
|
104
|
| Direct operating costs |
|
(20)
|
(21)
|
(45)
|
(45)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Adjusted EBITDA |
|
47
|
57
|
84
|
179
|
| Management service costs |
|
0
|
0
|
0
|
0
|
| Interest expense |
|
(6)
|
(13)
|
(15)
|
(20)
|
| Current income tax |
|
(1)
|
0
|
(1)
|
(1)
|
| Preferred limited partners equity |
|
0
|
0
|
0
|
0
|
| Preferred equity |
|
0
|
0
|
0
|
0
|
| Perpetual subordinated notes |
|
0
|
0
|
0
|
0
|
| Share of interest and cash taxes from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Share of Funds From Operations attributable to non-controlling interests |
|
0
|
0
|
0
|
0
|
| Funds From Operations |
|
40
|
44
|
68
|
158
|
| Attributable to Unitholders | Sustainable solutions |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
153
|
178
|
306
|
308
|
| Other income |
|
22
|
21
|
39
|
27
|
| Direct operating costs |
|
(123)
|
(114)
|
(252)
|
(228)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Adjusted EBITDA |
|
52
|
85
|
93
|
107
|
| Management service costs |
|
0
|
0
|
0
|
0
|
| Interest expense |
|
(6)
|
(8)
|
(16)
|
(16)
|
| Current income tax |
|
(2)
|
(3)
|
(3)
|
(5)
|
| Preferred limited partners equity |
|
0
|
0
|
0
|
0
|
| Preferred equity |
|
0
|
0
|
0
|
0
|
| Perpetual subordinated notes |
|
0
|
0
|
0
|
0
|
| Share of interest and cash taxes from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Share of Funds From Operations attributable to non-controlling interests |
|
0
|
0
|
0
|
0
|
| Funds From Operations |
|
44
|
74
|
74
|
86
|
| Attributable to Unitholders | Corporate |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
0
|
0
|
0
|
0
|
| Other income |
|
13
|
7
|
43
|
14
|
| Direct operating costs |
|
(13)
|
(11)
|
(26)
|
(22)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Adjusted EBITDA |
|
0
|
(4)
|
17
|
(8)
|
| Management service costs |
|
(77)
|
(56)
|
(150)
|
(105)
|
| Interest expense |
|
(62)
|
(50)
|
(119)
|
(94)
|
| Current income tax |
|
0
|
0
|
0
|
(1)
|
| Preferred limited partners equity |
|
(8)
|
(9)
|
(15)
|
(17)
|
| Preferred equity |
|
(8)
|
(7)
|
(16)
|
(14)
|
| Perpetual subordinated notes |
|
(10)
|
(10)
|
(20)
|
(20)
|
| Share of interest and cash taxes from equity-accounted investments |
|
0
|
0
|
0
|
0
|
| Share of Funds From Operations attributable to non-controlling interests |
|
0
|
0
|
0
|
0
|
| Funds From Operations |
|
(165)
|
(136)
|
(303)
|
(259)
|
| Contribution from equity-accounted investments |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
(221)
|
(269)
|
(468)
|
(491)
|
| Other income |
|
(28)
|
(68)
|
(63)
|
(98)
|
| Direct operating costs |
|
136
|
150
|
294
|
293
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
113
|
187
|
237
|
296
|
| Adjusted EBITDA |
|
0
|
0
|
0
|
0
|
| Management service costs |
|
0
|
0
|
0
|
0
|
| Interest expense |
|
19
|
24
|
41
|
45
|
| Current income tax |
|
1
|
3
|
5
|
9
|
| Preferred limited partners equity |
|
0
|
0
|
0
|
0
|
| Preferred equity |
|
0
|
0
|
0
|
0
|
| Perpetual subordinated notes |
|
0
|
0
|
0
|
0
|
| Share of interest and cash taxes from equity-accounted investments |
|
(20)
|
(27)
|
(46)
|
(54)
|
| Share of Funds From Operations attributable to non-controlling interests |
|
0
|
0
|
0
|
0
|
| Funds From Operations |
|
0
|
0
|
0
|
0
|
| Attributable to non- controlling interests and other(4) |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Revenues |
|
913
|
987
|
1,735
|
1,932
|
| Other income |
|
(20)
|
(3)
|
(155)
|
12
|
| Direct operating costs |
|
(438)
|
(442)
|
(884)
|
(843)
|
| Share of revenue, other income and direct operating costs from equity-accounted investments |
|
0
|
4
|
0
|
10
|
| Adjusted EBITDA |
|
455
|
546
|
696
|
1,111
|
| Management service costs |
|
0
|
0
|
0
|
0
|
| Interest expense |
|
(403)
|
(410)
|
(789)
|
(825)
|
| Current income tax |
|
78
|
22
|
70
|
78
|
| Preferred limited partners equity |
|
0
|
0
|
0
|
0
|
| Preferred equity |
|
0
|
0
|
0
|
0
|
| Perpetual subordinated notes |
|
0
|
0
|
0
|
0
|
| Share of interest and cash taxes from equity-accounted investments |
|
0
|
(4)
|
0
|
(10)
|
| Share of Funds From Operations attributable to non-controlling interests |
|
(130)
|
(154)
|
23
|
(354)
|
| Funds From Operations |
|
0
|
0
|
0
|
0
|
| Participating non-controlling interests – in operating subsidiaries |
|
|
|
|
|
| Disclosure of operating segments [line items] |
|
|
|
|
|
| Non-controlling interests |
|
$ (100)
|
$ 186
|
$ (191)
|
$ 250
|
|
|