CONDENSED FINANCIAL INFORMATION (PARENT COMPANY ONLY), Condensed Statement of Financial Condition (Details) - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Assets:
Cash and cash equivalents	$ 7,201	$ 5,390	$ 3,957
Assets segregated for regulatory purposes and restricted cash ($1 and $1 at fair value)	11,348	4,244
Investments in consolidated subsidiaries:
Goodwill and identifiable intangible assets, net	882	600
Other assets	161	231
Total assets	61,891	47,482
Liabilities and shareholders’ equity:
Accrued compensation, commissions and benefits	1,825	1,384
Other payables	1,701	1,513
Total liabilities	53,588	40,306
Equity	8,245	7,114
Total liabilities and shareholders’ equity	61,891	47,482
Assets segregated pursuant to regulations, fair value	2,100	0
Invested cash and cash equivalents by subsidiaries on behalf of Parent	649	1,700
RJF Parent Company
Assets:
Cash and cash equivalents	527	478	$ 540
Assets segregated for regulatory purposes and restricted cash ($1 and $1 at fair value)	478	78
Intercompany receivables from subsidiaries (primarily non-bank subsidiaries)	877	1,903
Investments in consolidated subsidiaries:
Bank subsidiary	2,594	2,315
Non-bank subsidiaries	5,703	4,306
Goodwill and identifiable intangible assets, net	32	32
Other assets	1,055	818
Total assets	11,266	9,930
Liabilities and shareholders’ equity:
Accrued compensation, commissions and benefits	798	596
Bank subsidiary	2	21
Non-bank subsidiaries	33	28
Other payables	151	126
Senior notes payable	2,037	2,045
Total liabilities	3,021	2,816
Equity	8,245	7,114
Total liabilities and shareholders’ equity	11,266	9,930
Assets segregated pursuant to regulations, fair value	$ 1	$ 1