SEGMENTED INFORMATION - Summary of Operating Results by Segment (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended |
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019 |
Disclosure of operating segments [line items] | | | | | |
Revenues | $ 651 | $ 787 | $ 1,443 | $ 1,612 | |
Other income | 23 | 17 | 33 | 25 | |
Direct operating costs | (248) | (252) | (509) | (506) | |
Share of Adjusted EBITDA from equity-accounted investments | (15) | 0 | (31) | 32 | |
Management service costs | (36) | (23) | (67) | (44) | |
Interest expense | (154) | (178) | (316) | (351) | |
Current income taxes | 3 | (15) | (16) | (39) | |
Depreciation | (192) | (200) | (398) | (400) | |
Foreign exchange and unrealized financial instrument gain (loss) | (14) | (12) | 6 | (30) | |
Deferred income tax (recovery) expense | (10) | 14 | (11) | 34 | |
Other | (17) | (1) | (25) | (3) | |
Share of (loss) earnings from equity-accounted investments | (15) | 0 | (31) | 32 | |
Participating non-controlling interests – in operating subsidiaries | | | | | |
Disclosure of operating segments [line items] | | | | | |
Non-controlling interests | | | 118 | | $ 262 |
Brazil | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 71 | 99 | 156 | 199 | |
Colombia | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 189 | 231 | 436 | 488 | |
Europe | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 16 | 27 | 43 | 69 | |
Attributable to Unitholders | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 466 | 553 | 1,011 | 1,106 | |
Other income | 79 | 14 | 91 | 21 | |
Direct operating costs | (149) | (167) | (315) | (332) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 396 | 400 | 787 | 795 | |
Management service costs | (36) | (23) | (67) | (44) | |
Interest expense | (104) | (119) | (217) | (240) | |
Current income taxes | (4) | (10) | (15) | (20) | |
Preferred limited partners equity | (14) | (11) | (26) | (21) | |
Preferred equity | (6) | (7) | (13) | (13) | |
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 | 232 | 230 | 449 | 457 | |
Depreciation | (158) | (163) | (330) | (320) | |
Foreign exchange and unrealized financial instrument gain (loss) | (51) | (13) | (44) | (31) | |
Deferred income tax (recovery) expense | 0 | (10) | (6) | 14 | |
Other | (67) | (27) | (95) | (60) | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | (44) | 17 | (26) | 60 | |
Attributable to Unitholders | Hydroelectric | North America | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 217 | 275 | 482 | 539 | |
Other income | 19 | 8 | 21 | 9 | |
Direct operating costs | (63) | (72) | (132) | (142) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 173 | 211 | 371 | 406 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | (29) | (39) | (68) | (80) | |
Current income taxes | 1 | (4) | (2) | (6) | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 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 | 145 | 168 | 301 | 320 | |
Depreciation | (59) | (56) | (117) | (111) | |
Foreign exchange and unrealized financial instrument gain (loss) | (32) | 1 | (14) | 3 | |
Deferred income tax (recovery) expense | (2) | (23) | (22) | (40) | |
Other | (42) | (11) | (62) | (26) | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | 10 | 79 | 86 | 146 | |
Attributable to Unitholders | Hydroelectric | Brazil | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 39 | 58 | 100 | 123 | |
Other income | 6 | 2 | 9 | 3 | |
Direct operating costs | (10) | (18) | (27) | (35) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 35 | 42 | 82 | 91 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | (4) | (6) | (8) | (12) | |
Current income taxes | (2) | (3) | (4) | (6) | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 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 | 29 | 33 | 70 | 73 | |
Depreciation | (16) | (22) | (36) | (44) | |
Foreign exchange and unrealized financial instrument gain (loss) | 0 | 4 | 7 | 3 | |
Deferred income tax (recovery) expense | 0 | 1 | 1 | 2 | |
Other | (4) | 0 | (8) | (1) | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | 9 | 16 | 34 | 33 | |
Attributable to Unitholders | Hydroelectric | Colombia | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 45 | 56 | 105 | 118 | |
Other income | 6 | 0 | 8 | 0 | |
Direct operating costs | (26) | (21) | (52) | (45) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 25 | 35 | 61 | 73 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | (7) | (8) | (14) | (16) | |
Current income taxes | 1 | (2) | (3) | (6) | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 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 | 19 | 25 | 44 | 51 | |
Depreciation | (5) | (5) | (11) | (10) | |
Foreign exchange and unrealized financial instrument gain (loss) | (6) | (1) | (1) | (1) | |
Deferred income tax (recovery) expense | (2) | (2) | (3) | (4) | |
Other | 5 | 0 | 5 | 1 | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | 11 | 17 | 34 | 37 | |
Attributable to Unitholders | Wind | North America | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 56 | 58 | 116 | 121 | |
Other income | 2 | 0 | 4 | 2 | |
Direct operating costs | (13) | (18) | (27) | (35) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 45 | 40 | 93 | 88 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | (15) | (16) | (34) | (35) | |
Current income taxes | (1) | (1) | (1) | (1) | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 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 | 29 | 23 | 58 | 52 | |
Depreciation | (37) | (39) | (79) | (79) | |
Foreign exchange and unrealized financial instrument gain (loss) | (3) | (1) | (5) | (1) | |
Deferred income tax (recovery) expense | 0 | 1 | (2) | 17 | |
Other | 0 | (6) | 1 | (7) | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | (11) | (22) | (27) | (18) | |
Attributable to Unitholders | Wind | Brazil | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 7 | 9 | 11 | 16 | |
Other income | 1 | 0 | 1 | 0 | |
Direct operating costs | (2) | (3) | (3) | (5) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 6 | 6 | 9 | 11 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | (1) | (2) | (2) | (4) | |
Current income taxes | 0 | 0 | (1) | (1) | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 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 | 5 | 4 | 6 | 6 | |
Depreciation | (3) | (5) | (7) | (9) | |
Foreign exchange and unrealized financial instrument gain (loss) | 0 | 0 | 0 | (1) | |
Deferred income tax (recovery) expense | 0 | 0 | 0 | 0 | |
Other | (2) | 5 | (2) | 5 | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | 0 | 4 | (3) | 1 | |
Attributable to Unitholders | Wind | Europe | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 15 | 22 | 37 | 50 | |
Other income | 3 | 1 | 3 | 1 | |
Direct operating costs | (5) | (8) | (14) | (16) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 13 | 15 | 26 | 35 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | (3) | (4) | (5) | (7) | |
Current income taxes | 0 | 0 | 0 | 0 | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 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 | 10 | 11 | 21 | 28 | |
Depreciation | (10) | (13) | (22) | (23) | |
Foreign exchange and unrealized financial instrument gain (loss) | (8) | (8) | (11) | (9) | |
Deferred income tax (recovery) expense | 0 | 1 | 1 | 6 | |
Other | (1) | (2) | (1) | (2) | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | (9) | (11) | (12) | 0 | |
Attributable to Unitholders | Wind | Asia | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 7 | 3 | 13 | 5 | |
Other income | 2 | 0 | 2 | 0 | |
Direct operating costs | (3) | (1) | (4) | (2) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 6 | 2 | 11 | 3 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | (2) | (1) | (4) | (1) | |
Current income taxes | 0 | 0 | 0 | 0 | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 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 | 4 | 1 | 7 | 2 | |
Depreciation | (2) | (1) | (4) | (2) | |
Foreign exchange and unrealized financial instrument gain (loss) | 0 | 0 | (1) | 0 | |
Deferred income tax (recovery) expense | 1 | 0 | 1 | (1) | |
Other | (1) | 2 | 1 | 2 | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | 2 | 2 | 4 | 1 | |
Attributable to Unitholders | Solar | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 61 | 51 | 110 | 89 | |
Other income | 11 | 1 | 12 | 2 | |
Direct operating costs | (13) | (10) | (27) | (17) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 59 | 42 | 95 | 74 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | (20) | (15) | (37) | (29) | |
Current income taxes | (2) | 0 | (3) | 0 | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 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 | 37 | 27 | 55 | 45 | |
Depreciation | (20) | (15) | (42) | (28) | |
Foreign exchange and unrealized financial instrument gain (loss) | (7) | 4 | (12) | 4 | |
Deferred income tax (recovery) expense | (1) | 0 | (2) | 16 | |
Other | (15) | (12) | (19) | (24) | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | (6) | 4 | (20) | 13 | |
Attributable to Unitholders | Storage & Other | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 19 | 21 | 37 | 45 | |
Other income | 1 | 0 | 1 | 0 | |
Direct operating costs | (8) | (11) | (18) | (24) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 12 | 10 | 20 | 21 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | (3) | (3) | (5) | (7) | |
Current income taxes | (1) | 0 | (1) | 0 | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 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 | 8 | 7 | 14 | 14 | |
Depreciation | (5) | (6) | (10) | (12) | |
Foreign exchange and unrealized financial instrument gain (loss) | (5) | 0 | (4) | (1) | |
Deferred income tax (recovery) expense | 0 | 0 | 0 | 0 | |
Other | 1 | 0 | 0 | 0 | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | (1) | 1 | 0 | 1 | |
Attributable to Unitholders | Corporate | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 0 | 0 | 0 | 0 | |
Other income | 28 | 2 | 30 | 4 | |
Direct operating costs | (6) | (5) | (11) | (11) | |
Share of Adjusted EBITDA from equity-accounted investments | 0 | 0 | 0 | 0 | |
Adjusted EBITDA | 22 | (3) | 19 | (7) | |
Management service costs | (36) | (23) | (67) | (44) | |
Interest expense | (20) | (25) | (40) | (49) | |
Current income taxes | 0 | 0 | 0 | 0 | |
Preferred limited partners equity | (14) | (11) | (26) | (21) | |
Preferred equity | (6) | (7) | (13) | (13) | |
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 | (54) | (69) | (127) | (134) | |
Depreciation | (1) | (1) | (2) | (2) | |
Foreign exchange and unrealized financial instrument gain (loss) | 10 | (12) | (3) | (28) | |
Deferred income tax (recovery) expense | 4 | 12 | 20 | 18 | |
Other | (8) | (3) | (10) | (8) | |
Share of earnings from equity-accounted investments | 0 | 0 | 0 | 0 | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | (49) | (73) | (122) | (154) | |
Contribution from equity-accounted investments | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | (104) | (98) | (199) | (189) | |
Other income | (7) | (2) | (9) | (6) | |
Direct operating costs | 25 | 27 | 53 | 56 | |
Share of Adjusted EBITDA from equity-accounted investments | 86 | 73 | 155 | 139 | |
Adjusted EBITDA | 0 | 0 | 0 | 0 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | 30 | 26 | 57 | 50 | |
Current income taxes | 3 | 0 | 7 | 1 | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 0 | 0 | 0 | 0 | |
Share of interest and cash taxes from equity accounted investments | (33) | (26) | (64) | (51) | |
Share of Funds From Operations attributable to non-controlling interests | 0 | 0 | 0 | 0 | |
Funds From Operations | 0 | 0 | 0 | 0 | |
Depreciation | 43 | 36 | 91 | 69 | |
Foreign exchange and unrealized financial instrument gain (loss) | 15 | 4 | 19 | 5 | |
Deferred income tax (recovery) expense | 2 | (1) | 7 | (36) | |
Other | 10 | 8 | 12 | 21 | |
Share of earnings from equity-accounted investments | (70) | (47) | (129) | (59) | |
Non-controlling interests | 0 | 0 | 0 | 0 | |
Net income (loss) attributable to Unitholders | 0 | 0 | 0 | 0 | |
Attributable to non- controlling interests | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 289 | 332 | 631 | 695 | |
Other income | (49) | 5 | (49) | 10 | |
Direct operating costs | (124) | (112) | (247) | (230) | |
Share of Adjusted EBITDA from equity-accounted investments | 5 | 5 | 13 | 12 | |
Adjusted EBITDA | 121 | 230 | 348 | 487 | |
Management service costs | 0 | 0 | 0 | 0 | |
Interest expense | (80) | (85) | (156) | (161) | |
Current income taxes | 4 | (5) | (8) | (20) | |
Preferred limited partners equity | 0 | 0 | 0 | 0 | |
Preferred equity | 0 | 0 | 0 | 0 | |
Share of interest and cash taxes from equity accounted investments | (5) | (5) | (8) | (9) | |
Share of Funds From Operations attributable to non-controlling interests | (40) | (135) | (176) | (297) | |
Funds From Operations | 0 | 0 | 0 | 0 | |
Depreciation | (77) | (73) | (159) | (149) | |
Foreign exchange and unrealized financial instrument gain (loss) | 22 | (3) | 31 | (4) | |
Deferred income tax (recovery) expense | 8 | (3) | 10 | (12) | |
Other | 40 | 18 | 58 | 36 | |
Share of earnings from equity-accounted investments | 2 | 0 | 2 | 0 | |
Non-controlling interests | 5 | 61 | 58 | 129 | |
Net income (loss) attributable to Unitholders | 0 | 0 | 0 | 0 | |
As per IFRS financials | | | | | |
Disclosure of operating segments [line items] | | | | | |
Revenues | 651 | 787 | 1,443 | 1,612 | |
Other income | 23 | 17 | 33 | 25 | |
Direct operating costs | (248) | (252) | (509) | (506) | |
Share of Adjusted EBITDA from equity-accounted investments | 91 | 78 | 168 | 151 | |
Adjusted EBITDA | | | | | |
Management service costs | (36) | (23) | (67) | (44) | |
Interest expense | (154) | (178) | (316) | (351) | |
Current income taxes | 3 | (15) | (16) | (39) | |
Preferred limited partners equity | (14) | (11) | (26) | (21) | |
Preferred equity | (6) | (7) | (13) | (13) | |
Share of interest and cash taxes from equity accounted investments | (38) | (31) | (72) | (60) | |
Share of Funds From Operations attributable to non-controlling interests | (40) | (135) | (176) | (297) | |
Depreciation | (192) | (200) | (398) | (400) | |
Foreign exchange and unrealized financial instrument gain (loss) | (14) | (12) | 6 | (30) | |
Deferred income tax (recovery) expense | 10 | (14) | 11 | (34) | |
Other | (17) | (1) | (25) | (3) | |
Share of earnings from equity-accounted investments | (68) | (47) | (127) | (59) | |
Non-controlling interests | 5 | 61 | 58 | 129 | |
Net income (loss) attributable to Unitholders | (44) | 17 | (26) | 60 | |
Share of (loss) earnings from equity-accounted investments | (15) | 0 | (31) | 32 | |
As per IFRS financials | Participating non-controlling interests – in operating subsidiaries | | | | | |
Disclosure of operating segments [line items] | | | | | |
Non-controlling interests | $ 35 | $ 74 | $ 118 | $ 168 | |