XML 112 R94.htm IDEA: XBRL DOCUMENT v3.21.2
VARIABLE INTEREST ENTITIES VARIABLE INTEREST ENTITIES, Primary Beneficiary - Aggregate Assets and Liabilities (Details) - USD ($)
$ in Millions
Sep. 30, 2021
Sep. 30, 2020
Variable interest entity, consolidated, aggregate assets and liabilities [Abstract]    
Aggregate assets $ 61,891 $ 47,482
Aggregate liabilities 53,588 40,306
Variable Interest Entity, Primary Beneficiary    
Variable interest entity, consolidated, aggregate assets and liabilities [Abstract]    
Aggregate assets 192 221
Aggregate liabilities 71 94
Private Equity Interests | Variable Interest Entity, Primary Beneficiary    
Variable interest entity, consolidated, aggregate assets and liabilities [Abstract]    
Aggregate assets 66 39
Aggregate liabilities 4 4
LIHTC funds | Variable Interest Entity, Primary Beneficiary    
Variable interest entity, consolidated, aggregate assets and liabilities [Abstract]    
Aggregate assets 111 168
Aggregate liabilities 52 76
Restricted Stock Trust Fund | Variable Interest Entity, Primary Beneficiary    
Variable interest entity, consolidated, aggregate assets and liabilities [Abstract]    
Aggregate assets 15 14
Aggregate liabilities $ 15 $ 14