EARNINGS PER COMMON SHARE AND DIVIDENDS PER SHARE - Schedule of Dividends Per Share (Details)	3 Months Ended
	Mar. 31, 2026 $ / shares	Mar. 31, 2026 $ / shares	Dec. 31, 2025 $ / shares
Dividends Payable [Line Items]
Common stock, dividends, per share, declared (in Canadian dollars per share)	$ 0.97
Preference Shares, Series A
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.34375
Preference Shares, Series B
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.32513
Preference Shares, Series D
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.33825
Preference Shares, Series F
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.34613
Preference Shares, Series G
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.29616		$ 0.29836
Preference Shares, Series H
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.382
Preference Shares, Series I
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.27159		0.27432
Preference Shares, Series L
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)		$ 0.36612
Preference Shares, Series N
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.4185
Preference Shares, Series P
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.36988
Preference Shares, Series R
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.39463
Preference Shares, Series 1
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)		0.41898
Preference Shares, Series 3
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.3305
Preference Shares, Series 4
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.28797		$ 0.29034
Preference Shares, Series 5
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)		$ 0.41769
Preference Shares, Series 7
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.37425
Preference Shares, Series 9
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.3545
Preference Shares, Series 11
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.34231
Preference Shares, Series 13
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.33719
Preference Shares, Series 15
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	0.35163
Preference Shares, Series 19
Dividends Payable [Line Items]
Preferred shares, dividend declared per share (in Canadian dollars per share)	$ 0.38825