REGULATORY CAPITAL REQUIREMENTS, RJF and RJB (Details) $ in Millions	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
Requirements of broker-dealer subsidiaries [Abstract]
Minimum net capital allowed under the alternative net capital requirement	$ 1.5
Percentage of aggregate debit items allowed for net capital, under the alternative net capital requirement	0.02
Raymond James Financial Inc
Tier 1 leverage
Actual, amount	$ 9,321.0	$ 8,480.0
Actual, ratio	0.119	0.103
Requirement for capital adequacy purposes, amount	$ 3,123.0	$ 3,304.0
Requirement for capital adequacy purposes, ratio	0.040	0.040
To be well-capitalized under regulatory provisions, amount	$ 3,904.0	$ 4,130.0
To be well-capitalized under regulatory provisions, ratio	0.050	0.050
Tier 1 capital
Actual, amount	$ 9,321.0	$ 8,480.0
Actual, ratio	0.214	0.192
Requirement for capital adequacy purposes, amount	$ 2,613.0	$ 2,651.0
Requirement for capital adequacy purposes, ratio	0.060	0.060
To be well-capitalized under regulatory provisions, amount	$ 3,484.0	$ 3,534.0
To be well-capitalized under regulatory provisions, ratio	0.080	0.080
CET1
Actual, amount	$ 9,245.0	$ 8,380.0
Actual, ratio	0.212	0.190
Requirement for capital adequacy purposes, amount	$ 1,960.0	$ 1,988.0
Requirement for capital adequacy purposes, ratio	0.045	0.045
To be well-capitalized under regulatory provisions, amount	$ 2,831.0	$ 2,871.0
To be well-capitalized under regulatory provisions, ratio	0.065	0.065
Total capital
Actual, amount	$ 9,934.0	$ 9,031.0
Actual ratio	0.228	0.204
Requirement for capital adequacy purposes, amount	$ 3,484.0	$ 3,534.0
Requirement for capital adequacy purposes, ratio	0.080	0.080
To be well-capitalized under regulatory provisions, amount	$ 4,355.0	$ 4,418.0
To be well-capitalized under regulatory provisions, ratio	0.100	0.100
Raymond James Bank
Tier 1 leverage
Actual, amount	$ 3,355.0	$ 2,998.0
Actual, ratio	0.078	0.071
Requirement for capital adequacy purposes, amount	$ 1,710.0	$ 1,695.0
Requirement for capital adequacy purposes, ratio	0.040	0.040
To be well-capitalized under regulatory provisions, amount	$ 2,137.0	$ 2,119.0
To be well-capitalized under regulatory provisions, ratio	0.050	0.050
Tier 1 capital
Actual, amount	$ 3,355.0	$ 2,998.0
Actual, ratio	0.137	0.121
Requirement for capital adequacy purposes, amount	$ 1,465.0	$ 1,485.0
Requirement for capital adequacy purposes, ratio	0.060	0.060
To be well-capitalized under regulatory provisions, amount	$ 1,954.0	$ 1,979.0
To be well-capitalized under regulatory provisions, ratio	0.080	0.080
CET1
Actual, amount	$ 3,355.0	$ 2,998.0
Actual, ratio	0.137	0.121
Requirement for capital adequacy purposes, amount	$ 1,099.0	$ 1,113.0
Requirement for capital adequacy purposes, ratio	0.045	0.045
To be well-capitalized under regulatory provisions, amount	$ 1,587.0	$ 1,608.0
To be well-capitalized under regulatory provisions, ratio	0.065	0.065
Total capital
Actual, amount	$ 3,662.0	$ 3,308.0
Actual ratio	0.150	0.134
Requirement for capital adequacy purposes, amount	$ 1,954.0	$ 1,979.0
Requirement for capital adequacy purposes, ratio	0.080	0.080
To be well-capitalized under regulatory provisions, amount	$ 2,442.0	$ 2,474.0
To be well-capitalized under regulatory provisions, ratio	0.100	0.100
TriState Capital Bank
Tier 1 leverage
Actual, amount	$ 1,290.0	$ 1,093.0
Actual, ratio	0.072	0.073
Requirement for capital adequacy purposes, amount	$ 721.0	$ 601.0
Requirement for capital adequacy purposes, ratio	0.040	0.040
To be well-capitalized under regulatory provisions, amount	$ 902.0	$ 752.0
To be well-capitalized under regulatory provisions, ratio	0.050	0.050
Tier 1 capital
Actual, amount	$ 1,290.0	$ 1,093.0
Actual, ratio	0.148	0.141
Requirement for capital adequacy purposes, amount	$ 524.0	$ 463.0
Requirement for capital adequacy purposes, ratio	0.060	0.060
To be well-capitalized under regulatory provisions, amount	$ 699.0	$ 618.0
To be well-capitalized under regulatory provisions, ratio	0.080	0.080
CET1
Actual, amount	$ 1,290.0	$ 1,093.0
Actual, ratio	0.148	0.141
Requirement for capital adequacy purposes, amount	$ 393.0	$ 348.0
Requirement for capital adequacy purposes, ratio	0.045	0.045
To be well-capitalized under regulatory provisions, amount	$ 568.0	$ 502.0
To be well-capitalized under regulatory provisions, ratio	0.065	0.065
Total capital
Actual, amount	$ 1,333.0	$ 1,122.0
Actual ratio	0.153	0.145
Requirement for capital adequacy purposes, amount	$ 699.0	$ 618.0
Requirement for capital adequacy purposes, ratio	0.080	0.080
To be well-capitalized under regulatory provisions, amount	$ 874.0	$ 772.0
To be well-capitalized under regulatory provisions, ratio	0.100	0.100