SUBSEQUENT EVENTS (Details) € in Millions, $ in Millions	1 Months Ended	2 Months Ended		3 Months Ended
SUBSEQUENT EVENTS (Details) € in Millions, $ in Millions	Mar. 31, 2022	Feb. 28, 2022 USD ($) GW	Feb. 28, 2022 EUR (€) GW	Jun. 30, 2022 USD ($) MW
Forecast \| Poland Renewable Business
Disclosure of non-adjusting events after reporting period [line items]
Proportion of ownership interest	32.00%
Forecast \| 750 MW Portfolio
Disclosure of non-adjusting events after reporting period [line items]
Cash payments to acquire assets				$ 220
Proportion of ownership interest				26.00%
Wind power capacity \| MW				700
Major purchases of assets \| 1.7 GW Germany Portfolio
Disclosure of non-adjusting events after reporting period [line items]
Solar power capacity \| GW		1.7	1.7
Cash payments to acquire assets		$ 76	€ 65
Major purchases of assets \| 20 GW United States Portfolio
Disclosure of non-adjusting events after reporting period [line items]
Solar power capacity \| GW		20	20
Cash payments to acquire assets		$ 650
Brookfield Renewable \| Forecast \| Poland Renewable Business
Disclosure of non-adjusting events after reporting period [line items]
Proportion of ownership interest	8.00%
Brookfield Renewable \| Forecast \| 750 MW Portfolio
Disclosure of non-adjusting events after reporting period [line items]
Cash payments to acquire assets				$ 55
Proportion of ownership interest				25.00%
Brookfield Renewable \| Forecast \| 750 MW Portfolio \| Top of range
Disclosure of non-adjusting events after reporting period [line items]
Proportion of ownership interest				60.00%
Brookfield Renewable \| 1.7 GW Germany Portfolio \| Forecast
Disclosure of non-adjusting events after reporting period [line items]
Proportion of ownership interest		25.00%	25.00%
Brookfield Renewable \| 20 GW United States Portfolio \| Forecast
Disclosure of non-adjusting events after reporting period [line items]
Proportion of ownership interest		25.00%	25.00%
Brookfield Renewable \| Major purchases of assets \| 20 GW United States Portfolio
Disclosure of non-adjusting events after reporting period [line items]
Cash payments to acquire assets		$ 160