REGULATORY CAPITAL REQUIREMENTS (Details) $ in Millions	Jun. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Raymond James Financial Inc
Common Equity Tier 1 Capital (to Risk-Weighted Assets)
Actual, amount	$ 8,228	$ 7,428
Actual, ratio	20.00%	25.00%
Requirement for capital adequacy purposes, amount	$ 1,855	$ 1,337
Requirement for capital adequacy purposes, ratio (in hundredths)	4.50%	4.50%
To be well capitalized under regulatory provisions, amount	$ 2,679	$ 1,932
To be well capitalized under regulatory provisions, ratio (in hundredths)	6.50%	6.50%
Tier 1 Capital (to Risk-Weighted Assets)
Actual, amount	$ 8,228	$ 7,428
Actual, ratio	0.200	0.250
Requirement for capital adequacy purposes, amount	$ 2,473	$ 1,783
Requirement for capital adequacy purposes, ratio (in hundredths)	0.060	0.060
To be well capitalized under regulatory provisions, amount	$ 3,297	$ 2,377
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.080	0.080
Total Capital (to Risk-Weighted Assets)
Actual, amount	$ 8,868	$ 7,780
Actual, ratio	0.215	0.262
Requirement for capital adequacy purposes, amount	$ 3,297	$ 2,377
Requirement for capital adequacy purposes, ratio (in hundredths)	0.080	0.080
To be well capitalized under regulatory provisions, amount	$ 4,121	$ 2,972
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.100	0.100
Tier 1 leverage
Actual, amount	$ 8,228	$ 7,428
Actual, ratio	0.108	0.126
Requirement for capital adequacy purposes, amount	$ 3,042	$ 2,363
Requirement for capital adequacy purposes, ratio (in hundredths)	0.040	0.040
To be well capitalized under regulatory provisions, amount	$ 3,803	$ 2,954
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	$ 2,853	$ 2,626
Actual, ratio	12.20%	13.40%
Requirement for capital adequacy purposes, amount	$ 1,056	$ 883
Requirement for capital adequacy purposes, ratio (in hundredths)	4.50%	4.50%
To be well capitalized under regulatory provisions, amount	$ 1,525	$ 1,275
To be well capitalized under regulatory provisions, ratio (in hundredths)	6.50%	6.50%
Tier 1 Capital (to Risk-Weighted Assets)
Actual, amount	$ 2,853	$ 2,626
Actual, ratio	0.122	0.134
Requirement for capital adequacy purposes, amount	$ 1,408	$ 1,177
Requirement for capital adequacy purposes, ratio (in hundredths)	0.060	0.060
To be well capitalized under regulatory provisions, amount	$ 1,877	$ 1,569
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.080	0.080
Total Capital (to Risk-Weighted Assets)
Actual, amount	$ 3,147	$ 2,873
Actual, ratio	0.134	0.146
Requirement for capital adequacy purposes, amount	$ 1,877	$ 1,569
Requirement for capital adequacy purposes, ratio (in hundredths)	0.080	0.080
To be well capitalized under regulatory provisions, amount	$ 2,346	$ 1,962
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.100	0.100
Tier 1 leverage
Actual, amount	$ 2,853	$ 2,626
Actual, ratio	0.071	0.074
Requirement for capital adequacy purposes, amount	$ 1,617	$ 1,411
Requirement for capital adequacy purposes, ratio (in hundredths)	0.040	0.040
To be well capitalized under regulatory provisions, amount	$ 2,022	$ 1,763
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	$ 1,019
Actual, ratio	13.70%
Requirement for capital adequacy purposes, amount	$ 334
Requirement for capital adequacy purposes, ratio (in hundredths)	4.50%
To be well capitalized under regulatory provisions, amount	$ 483
To be well capitalized under regulatory provisions, ratio (in hundredths)	6.50%
Tier 1 Capital (to Risk-Weighted Assets)
Actual, amount	$ 1,019
Actual, ratio	0.137
Requirement for capital adequacy purposes, amount	$ 446
Requirement for capital adequacy purposes, ratio (in hundredths)	0.060
To be well capitalized under regulatory provisions, amount	$ 594
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.080
Total Capital (to Risk-Weighted Assets)
Actual, amount	$ 1,047
Actual, ratio	0.141
Requirement for capital adequacy purposes, amount	$ 594
Requirement for capital adequacy purposes, ratio (in hundredths)	0.080
To be well capitalized under regulatory provisions, amount	$ 743
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.100
Tier 1 leverage
Actual, amount	$ 1,019
Actual, ratio	0.073
Requirement for capital adequacy purposes, amount	$ 562
Requirement for capital adequacy purposes, ratio (in hundredths)	0.040
To be well capitalized under regulatory provisions, amount	$ 703
To be well capitalized under regulatory provisions, ratio (in hundredths)	0.050
Raymond James & Associates Inc
Alternative Method Elected [Abstract]
Net capital as a percent of aggregate debit items (in hundredths)	42.70%	72.10%
Net capital	$ 1,213	$ 2,035
Less: required net capital	(57)	(56)
Excess net capital	$ 1,156	$ 1,979