REGULATORY CAPITAL REQUIREMENTS (Details) $ in Millions	Jun. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
Raymond James Financial Inc
Common Equity Tier 1 Capital (to Risk-Weighted Assets)
Actual, amount	$ 8,852	$ 8,380
Actual, ratio	20.40%	19.00%
Requirement for capital adequacy purposes, amount	$ 1,955	$ 1,988
Requirement for capital adequacy purposes, ratio (in hundredths)	4.50%	4.50%
To be well capitalized under regulatory provisions, amount	$ 2,824	$ 2,871
To be well capitalized under regulatory provisions, ratio (in hundredths)	6.50%	6.50%
Tier 1 Capital (to Risk-Weighted Assets)
Actual, amount	$ 8,928	$ 8,480
Actual, ratio	0.206	0.192
Requirement for capital adequacy purposes, amount	$ 2,607	$ 2,651
Requirement for capital adequacy purposes, ratio (in hundredths)	0.060	0.060
To be well capitalized under regulatory provisions, amount	$ 3,476	$ 3,534
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.080	0.080
Total Capital (to Risk-Weighted Assets)
Actual, amount	$ 9,540	$ 9,031
Actual, ratio	0.220	0.204
Requirement for capital adequacy purposes, amount	$ 3,476	$ 3,534
Requirement for capital adequacy purposes, ratio (in hundredths)	0.080	0.080
To be well capitalized under regulatory provisions, amount	$ 4,345	$ 4,418
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.100	0.100
Tier 1 leverage
Actual, amount	$ 8,928	$ 8,480
Actual, ratio	0.114	0.103
Requirement for capital adequacy purposes, amount	$ 3,135	$ 3,304
Requirement for capital adequacy purposes, ratio (in hundredths)	0.040	0.040
To be well capitalized under regulatory provisions, amount	$ 3,919	$ 4,130
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.050	0.050
Raymond James Bank
Common Equity Tier 1 Capital (to Risk-Weighted Assets)
Actual, amount	$ 3,349	$ 2,998
Actual, ratio	13.60%	12.10%
Requirement for capital adequacy purposes, amount	$ 1,107	$ 1,113
Requirement for capital adequacy purposes, ratio (in hundredths)	4.50%	4.50%
To be well capitalized under regulatory provisions, amount	$ 1,599	$ 1,608
To be well capitalized under regulatory provisions, ratio (in hundredths)	6.50%	6.50%
Tier 1 Capital (to Risk-Weighted Assets)
Actual, amount	$ 3,349	$ 2,998
Actual, ratio	0.136	0.121
Requirement for capital adequacy purposes, amount	$ 1,476	$ 1,485
Requirement for capital adequacy purposes, ratio (in hundredths)	0.060	0.060
To be well capitalized under regulatory provisions, amount	$ 1,967	$ 1,979
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.080	0.080
Total Capital (to Risk-Weighted Assets)
Actual, amount	$ 3,658	$ 3,308
Actual, ratio	0.149	0.134
Requirement for capital adequacy purposes, amount	$ 1,967	$ 1,979
Requirement for capital adequacy purposes, ratio (in hundredths)	0.080	0.080
To be well capitalized under regulatory provisions, amount	$ 2,459	$ 2,474
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.100	0.100
Tier 1 leverage
Actual, amount	$ 3,349	$ 2,998
Actual, ratio	0.076	0.071
Requirement for capital adequacy purposes, amount	$ 1,768	$ 1,695
Requirement for capital adequacy purposes, ratio (in hundredths)	0.040	0.040
To be well capitalized under regulatory provisions, amount	$ 2,210	$ 2,119
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.050	0.050
TriState Capital Bank
Common Equity Tier 1 Capital (to Risk-Weighted Assets)
Actual, amount	$ 1,243	$ 1,093
Actual, ratio	14.70%	14.10%
Requirement for capital adequacy purposes, amount	$ 380	$ 348
Requirement for capital adequacy purposes, ratio (in hundredths)	4.50%	4.50%
To be well capitalized under regulatory provisions, amount	$ 549	$ 502
To be well capitalized under regulatory provisions, ratio (in hundredths)	6.50%	6.50%
Tier 1 Capital (to Risk-Weighted Assets)
Actual, amount	$ 1,243	$ 1,093
Actual, ratio	0.147	0.141
Requirement for capital adequacy purposes, amount	$ 507	$ 463
Requirement for capital adequacy purposes, ratio (in hundredths)	0.060	0.060
To be well capitalized under regulatory provisions, amount	$ 676	$ 618
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.080	0.080
Total Capital (to Risk-Weighted Assets)
Actual, amount	$ 1,283	$ 1,122
Actual, ratio	0.152	0.145
Requirement for capital adequacy purposes, amount	$ 676	$ 618
Requirement for capital adequacy purposes, ratio (in hundredths)	0.080	0.080
To be well capitalized under regulatory provisions, amount	$ 845	$ 772
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.100	0.100
Tier 1 leverage
Actual, amount	$ 1,243	$ 1,093
Actual, ratio	0.072	0.073
Requirement for capital adequacy purposes, amount	$ 695	$ 601
Requirement for capital adequacy purposes, ratio (in hundredths)	0.040	0.040
To be well capitalized under regulatory provisions, amount	$ 868	$ 752
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.050	0.050
Raymond James & Associates Inc
Alternative Method Elected [Abstract]
Net capital as a percent of aggregate debit items (in hundredths)	43.40%	40.90%
Net capital	$ 1,065	$ 1,152
Less: required net capital	(49)	(56)
Excess net capital	$ 1,016	$ 1,096