Noncontrolling Interests (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Noncontrolling Interest [Line Items]
Noncontrolling Equity	$ 203.7	$ 188.1
Total, excluding BAM
Noncontrolling Interest [Line Items]
Noncontrolling Equity	$ 360.9	$ 342.8
HG Global
Noncontrolling Interest [Line Items]
Noncontrolling Percentage	3.10%	3.10%
Noncontrolling Equity	$ (1.3)	$ (0.6)
Ark
Noncontrolling Interest [Line Items]
Noncontrolling Percentage	28.00%	28.00%
Noncontrolling Equity	$ 263.3	$ 247.9
Asset Management (Kudu)
Noncontrolling Interest [Line Items]
Noncontrolling Percentage	10.80%	10.80%
Noncontrolling Equity	$ 88.8	$ 75.1
Other
Noncontrolling Interest [Line Items]
Noncontrolling Equity	$ 10.1	$ 20.4
BAM
Noncontrolling Interest [Line Items]
Noncontrolling Percentage	100.00%	100.00%
Noncontrolling Equity	$ (157.2)	$ (154.7)