COMMITMENTS, CONTINGENCIES AND GUARANTEES, Guarantees (Details)	Sep. 30, 2021 USD ($)
Securities Industry Protection Corporation (SIPC)
Guarantees [Abstract]
SIPC fund securities per customer limit (up to)	$ 500,000
SIPC fund upper limit claims per customer for cash balances	250,000
Raymond James and Associates Inc
Guarantees [Abstract]
Excess SIPC insured amount firm aggregate upper limit	750,000,000
Excess SIPC Sub-limit firm aggregate per customer cash above basic SIPC	1,900,000
Guarantee of debt | Other investments - private equity
Guarantees [Abstract]
Exposure of guarantees	$ 13,000,000