CONDENSED FINANCIAL INFORMATION (PARENT COMPANY ONLY), Condensed Statement of Financial Condition (Details) - USD ($) $ in Millions	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Assets:
Cash and cash equivalents	$ 5,390	$ 3,957	$ 3,500
Investments in consolidated subsidiaries:
Property and equipment, net	535	527
Goodwill and identifiable intangible assets, net	600	611
Other assets	67	70
Total assets	47,482	38,830
Liabilities and shareholders’ equity:
Accrued compensation and benefits	1,384	1,272
Other payables	1,513	747
Total liabilities	40,306	32,187
Equity	7,114	6,581
Total liabilities and shareholders’ equity	47,482	38,830
Invested cash and cash equivalents by subsidiaries on behalf of Parent	1,700	827
RJF Parent Company
Assets:
Cash and cash equivalents	478	540	$ 695
Assets segregated pursuant to regulations	78	57
Intercompany receivables from subsidiaries (primarily non-bank subsidiaries)	1,903	1,143
Investments in consolidated subsidiaries:
Bank subsidiary	2,315	2,248
Non-bank subsidiaries	4,306	4,093
Property and equipment, net	14	14
Goodwill and identifiable intangible assets, net	32	32
Other assets	804	728
Total assets	9,930	8,855
Liabilities and shareholders’ equity:
Accrued compensation and benefits	596	514
Bank subsidiary	21	0
Non-bank subsidiaries	28	119
Other payables	126	91
Senior notes payable	2,045	1,550
Total liabilities	2,816	2,274
Equity	7,114	6,581
Total liabilities and shareholders’ equity	$ 9,930	$ 8,855