Annual report pursuant to Section 13 and 15(d)

VIEs - Unconsolidated VIEs (Details)

v3.20.4
VIEs - Unconsolidated VIEs (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Variable Interest Entity [Line Items]    
Total assets $ 123,038 $ 109,002
Total Liabilities 110,045 97,207
Variable Interest Entity, Not Primary Beneficiary    
Variable Interest Entity [Line Items]    
Total assets 1,278 920
Total Liabilities 824 647
Maximum Exposure to Loss 1,264 906
Trust Preferred Securities | Variable Interest Entity, Not Primary Beneficiary    
Variable Interest Entity [Line Items]    
Total assets 14 14
Total Liabilities 252 252
Maximum Exposure to Loss 0 0
Affordable Housing Tax Credit Partnerships | Variable Interest Entity, Not Primary Beneficiary    
Variable Interest Entity [Line Items]    
Total assets 956 727
Total Liabilities 500 332
Maximum Exposure to Loss 956 727
Other Investments | Variable Interest Entity, Not Primary Beneficiary    
Variable Interest Entity [Line Items]    
Total assets 308 179
Total Liabilities 72 63
Maximum Exposure to Loss $ 308 $ 179