EARNINGS PER COMMON SHARE AND DIVIDENDS PER SHARE - Dividends Per Share (Details)			3 Months Ended
	Oct. 29, 2024 $ / shares	Oct. 29, 2024 $ / shares	Dec. 31, 2024 $ / shares	Sep. 30, 2024 $ / shares
Preference Shares, Series G
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)				$ 0.46817
Preference Shares, Series I
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)				0.44366
Preference Shares, Series 3
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)				0.23356
Preference Shares, Series 4
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)				$ 0.42206
Subsequent event
Dividends Payable [Line Items]
Common stock, dividends, per share, declared (in Canadian dollars per share)	$ 0.91500
Subsequent event | Preference Shares, Series A
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.34375
Subsequent event | Preference Shares, Series B
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.32513
Subsequent event | Preference Shares, Series D
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.33825
Subsequent event | Preference Shares, Series F
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.34613
Subsequent event | Preference Shares, Series G
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.43014		$ 0.43014
Subsequent event | Preference Shares, Series H
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.38200
Subsequent event | Preference Shares, Series I
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.40589		0.40589
Subsequent event | Preference Shares, Series L
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)		$ 0.36612
Subsequent event | Preference Shares, Series N
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.41850
Subsequent event | Preference Shares, Series P
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.36988
Subsequent event | Preference Shares, Series R
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.39463
Subsequent event | Preference Shares, Series 1
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)		0.41898
Subsequent event | Preference Shares, Series 3
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.33050		$ 0.33050
Subsequent event | Preference Shares, Series 4
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.42206
Subsequent event | Preference Shares, Series 5
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)		$ 0.41769
Subsequent event | Preference Shares, Series 7
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.37425
Subsequent event | Preference Shares, Series 9
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.25606
Subsequent event | Preference Shares, Series 11
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.24613
Subsequent event | Preference Shares, Series 13
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.19019
Subsequent event | Preference Shares, Series 15
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	0.18644
Subsequent event | Preference Shares, Series 19
Dividends Payable [Line Items]
Preferred stock, dividend declared per share (in Canadian dollars per share)	$ 0.38825