CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) $ in Millions	Total	Total	Common shares and paid-in surplus	Retained earnings	AOCI, after tax	Non-controlling interest	Total Equity	BAM Non-controlling interest	BAM Total Equity
Beginning Balances at Dec. 31, 2020		$ 3,906.0	$ 595.2	$ 3,311.2	$ (0.4)	$ (88.1)	$ 3,817.9
Increase (Decrease) in Shareholders' Equity
Net income (loss)	$ (110.5)	(75.3)		(75.3)		(35.2)	(110.5)
Other comprehensive income (loss), net of tax	1.8	1.7			1.7	0.1	1.8
Comprehensive income (loss)	(73.5)	(73.6)		(75.3)	1.7	(35.1)	(108.7)
Dividends declared on common shares		(3.1)		(3.1)			(3.1)
Dividends to non-controlling interests						(0.6)	(0.6)
Repurchases and retirements of common shares		(7.5)	(1.4)	(6.1)			(7.5)
BAM member surplus contribution, net of tax								$ 13.8	$ 13.8
Amortization of restricted share awards		4.0	4.0				4.0
Recognition of equity-based compensation expense of subsidiaries		0.5	0.5				0.5
Net contributions and dilution from other non-controlling interests		(0.4)	(0.4)			(0.2)	(0.6)
Acquisition of non-controlling interests						220.2	220.2
Ending Balances at Mar. 31, 2021		3,825.9	597.9	3,226.7	1.3	110.0	3,935.9
Beginning Balances at Dec. 31, 2021	3,704.7	3,548.1	588.9	2,957.5	1.7	156.6	3,704.7
Increase (Decrease) in Shareholders' Equity
Net income (loss)	(8.4)	33.4		33.4		(41.8)	(8.4)
Other comprehensive income (loss), net of tax	(2.3)	(2.1)			(2.1)	(0.2)	(2.3)
Comprehensive income (loss)	31.1	31.3		33.4	(2.1)	(42.0)	(10.7)
Dividends declared on common shares		(3.0)		(3.0)			(3.0)
Dividends to non-controlling interests						(0.6)	(0.6)
Issuances of common shares		0.8	0.8				0.8
Repurchases and retirements of common shares		(39.0)	(7.3)	(31.7)			(39.0)
BAM member surplus contribution, net of tax								$ 12.3	$ 12.3
Amortization of restricted share awards		2.9	2.9				2.9
Recognition of equity-based compensation expense of subsidiaries		1.2	1.2			0.2	1.4
Net contributions and dilution from other non-controlling interests		(0.2)	(0.2)			0.7	0.5
Ending Balances at Mar. 31, 2022	$ 3,669.3	$ 3,542.1	$ 586.3	$ 2,956.2	$ (0.4)	$ 127.2	$ 3,669.3