v3.26.1
Loans and Leases - Schedule of Performance of Loans Modified in Last 12 Months (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Jun. 30, 2025
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total $ 599 $ 28
Current    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 337 11
30 - 89 Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 42 0
90+ Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 220 17
Loans and leases held for investment: | Multi-family    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 375  
Loans and leases held for investment: | Multi-family | Current    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 199  
Loans and leases held for investment: | Multi-family | 30 - 89 Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 23  
Loans and leases held for investment: | Multi-family | 90+ Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 153  
Loans and leases held for investment: | Commercial real estate    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 160 6
Loans and leases held for investment: | Commercial real estate | Current    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 128 6
Loans and leases held for investment: | Commercial real estate | 30 - 89 Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 19 0
Loans and leases held for investment: | Commercial real estate | 90+ Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 13 0
Loans and leases held for investment: | One-to-four family first mortgage    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 62 21
Loans and leases held for investment: | One-to-four family first mortgage | Current    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 10 5
Loans and leases held for investment: | One-to-four family first mortgage | 30 - 89 Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 0 0
Loans and leases held for investment: | One-to-four family first mortgage | 90+ Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 52 16
Commercial and industrial | Commercial and Industrial    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total   1
Commercial and industrial | Commercial and Industrial | Current    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total   0
Commercial and industrial | Commercial and Industrial | 30 - 89 Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total   0
Commercial and industrial | Commercial and Industrial | 90+ Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total   $ 1
Commercial and industrial | Other Consumer    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 2  
Commercial and industrial | Other Consumer | Current    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 0  
Commercial and industrial | Other Consumer | 30 - 89 Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total 0  
Commercial and industrial | Other Consumer | 90+ Past Due    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total $ 2