v3.26.1
Fair Values of Assets and Liabilities - Fair Value of Other Financial Instruments (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Assets    
Cash and cash equivalents $ 21,856 $ 15,936
Cash and investments segregated and on deposit for regulatory purposes 18,865 23,555
Held to maturity securities: 131,671 133,969
Other assets 3,129 3,163
U.S. agency mortgage-backed securities    
Assets    
Held to maturity securities: 131,155 133,563
U.S. Treasury securities    
Assets    
Cash and cash equivalents   1,989
Held to maturity securities: 516 406
Level 1    
Assets    
Cash and cash equivalents 21,565 13,947
Cash and investments segregated and on deposit for regulatory purposes 0 0
Other assets 3,015 3,018
Level 1 | U.S. Treasury securities    
Assets    
Cash and cash equivalents   0
Level 2    
Assets    
Cash and cash equivalents 291 1,989
Cash and investments segregated and on deposit for regulatory purposes 18,865 23,555
Other assets 114 145
Level 2 | U.S. Treasury securities    
Assets    
Cash and cash equivalents   1,989
Level 3    
Assets    
Cash and cash equivalents 0 0
Cash and investments segregated and on deposit for regulatory purposes 0 0
Other assets 0 0
Level 3 | U.S. Treasury securities    
Assets    
Cash and cash equivalents   0
Carrying Amount    
Assets    
Cash and cash equivalents 23,119 30,094
Cash and investments segregated and on deposit for regulatory purposes 20,848 19,290
Receivables from brokers, dealers, and clearing organizations 11,808 7,190
Receivables from brokerage clients — net 106,172 104,625
Held to maturity securities: 131,671 133,969
Bank loans – net 60,872 57,955
Other assets 676 766
Liabilities    
Bank deposits 253,041 255,747
Payables to brokers, dealers, and clearing organizations 28,107 25,689
Payables to brokerage clients 117,986 116,341
Accrued expenses and other liabilities 1,470 1,359
Other short-term borrowings 12,486 6,913
Federal Home Loan Bank borrowings   1,850
Long-term debt 20,456 22,162
Carrying Amount | Residential real estate | First Mortgages    
Assets    
Bank loans – net 31,240 30,456
Carrying Amount | Residential real estate | HELOCs    
Assets    
Bank loans – net 421 426
Carrying Amount | Pledged asset lines    
Assets    
Bank loans – net 28,790 26,603
Carrying Amount | Other    
Assets    
Bank loans – net 421 470
Carrying Amount | U.S. agency mortgage-backed securities    
Assets    
Held to maturity securities: 131,155 133,563
Carrying Amount | U.S. Treasury securities    
Assets    
Held to maturity securities: 516 406
Portion at Other than Fair Value Measurement    
Assets    
Cash and cash equivalents 23,119 30,094
Cash and investments segregated and on deposit for regulatory purposes 20,848 19,290
Receivables from brokers, dealers, and clearing organizations 11,808 7,190
Receivables from brokerage clients — net 106,172 104,625
Held to maturity securities: 123,051 126,055
Bank loans – net 58,972 56,116
Other assets 676 766
Liabilities    
Bank deposits 253,041 255,747
Payables to brokers, dealers, and clearing organizations 28,107 25,689
Payables to brokerage clients 117,986 116,341
Accrued expenses and other liabilities 1,470 1,359
Other short-term borrowings 12,486 6,913
Federal Home Loan Bank borrowings   1,850
Long-term debt 20,292 22,059
Portion at Other than Fair Value Measurement | Residential real estate | First Mortgages    
Assets    
Bank loans – net 29,346 28,612
Portion at Other than Fair Value Measurement | Residential real estate | HELOCs    
Assets    
Bank loans – net 415 431
Portion at Other than Fair Value Measurement | Pledged asset lines    
Assets    
Bank loans – net 28,790 26,603
Portion at Other than Fair Value Measurement | Other    
Assets    
Bank loans – net 421 470
Portion at Other than Fair Value Measurement | U.S. agency mortgage-backed securities    
Assets    
Held to maturity securities: 122,539 125,649
Portion at Other than Fair Value Measurement | U.S. Treasury securities    
Assets    
Held to maturity securities: 512 406
Portion at Other than Fair Value Measurement | Level 1    
Assets    
Cash and cash equivalents 16,719 30,094
Cash and investments segregated and on deposit for regulatory purposes 2,898 2,470
Receivables from brokers, dealers, and clearing organizations 0 0
Receivables from brokerage clients — net 0 0
Held to maturity securities: 0 0
Bank loans – net 0 0
Other assets 0 0
Liabilities    
Bank deposits 0 0
Payables to brokers, dealers, and clearing organizations 0 0
Payables to brokerage clients 0 0
Accrued expenses and other liabilities 0 0
Other short-term borrowings 0 0
Federal Home Loan Bank borrowings   0
Long-term debt 0 0
Portion at Other than Fair Value Measurement | Level 1 | Residential real estate | First Mortgages    
Assets    
Bank loans – net 0 0
Portion at Other than Fair Value Measurement | Level 1 | Residential real estate | HELOCs    
Assets    
Bank loans – net 0 0
Portion at Other than Fair Value Measurement | Level 1 | Pledged asset lines    
Assets    
Bank loans – net 0 0
Portion at Other than Fair Value Measurement | Level 1 | Other    
Assets    
Bank loans – net 0 0
Portion at Other than Fair Value Measurement | Level 1 | U.S. agency mortgage-backed securities    
Assets    
Held to maturity securities: 0 0
Portion at Other than Fair Value Measurement | Level 1 | U.S. Treasury securities    
Assets    
Held to maturity securities: 0 0
Portion at Other than Fair Value Measurement | Level 2    
Assets    
Cash and cash equivalents 6,400 0
Cash and investments segregated and on deposit for regulatory purposes 17,950 16,820
Receivables from brokers, dealers, and clearing organizations 11,808 7,190
Receivables from brokerage clients — net 106,172 104,625
Held to maturity securities: 123,051 126,055
Bank loans – net 58,972 56,116
Other assets 676 766
Liabilities    
Bank deposits 253,041 255,747
Payables to brokers, dealers, and clearing organizations 28,107 25,689
Payables to brokerage clients 117,986 116,341
Accrued expenses and other liabilities 1,470 1,359
Other short-term borrowings 12,486 6,913
Federal Home Loan Bank borrowings   1,850
Long-term debt 20,292 22,059
Portion at Other than Fair Value Measurement | Level 2 | Residential real estate | First Mortgages    
Assets    
Bank loans – net 29,346 28,612
Portion at Other than Fair Value Measurement | Level 2 | Residential real estate | HELOCs    
Assets    
Bank loans – net 415 431
Portion at Other than Fair Value Measurement | Level 2 | Pledged asset lines    
Assets    
Bank loans – net 28,790 26,603
Portion at Other than Fair Value Measurement | Level 2 | Other    
Assets    
Bank loans – net 421 470
Portion at Other than Fair Value Measurement | Level 2 | U.S. agency mortgage-backed securities    
Assets    
Held to maturity securities: 122,539 125,649
Portion at Other than Fair Value Measurement | Level 2 | U.S. Treasury securities    
Assets    
Held to maturity securities: 512 406
Portion at Other than Fair Value Measurement | Level 3    
Assets    
Cash and cash equivalents 0 0
Cash and investments segregated and on deposit for regulatory purposes 0 0
Receivables from brokers, dealers, and clearing organizations 0 0
Receivables from brokerage clients — net 0 0
Held to maturity securities: 0 0
Bank loans – net 0 0
Other assets 0 0
Liabilities    
Bank deposits 0 0
Payables to brokers, dealers, and clearing organizations 0 0
Payables to brokerage clients 0 0
Accrued expenses and other liabilities 0 0
Other short-term borrowings 0 0
Federal Home Loan Bank borrowings   0
Long-term debt 0 0
Portion at Other than Fair Value Measurement | Level 3 | Residential real estate | First Mortgages    
Assets    
Bank loans – net 0 0
Portion at Other than Fair Value Measurement | Level 3 | Residential real estate | HELOCs    
Assets    
Bank loans – net 0 0
Portion at Other than Fair Value Measurement | Level 3 | Pledged asset lines    
Assets    
Bank loans – net 0 0
Portion at Other than Fair Value Measurement | Level 3 | Other    
Assets    
Bank loans – net 0 0
Portion at Other than Fair Value Measurement | Level 3 | U.S. agency mortgage-backed securities    
Assets    
Held to maturity securities: 0 0
Portion at Other than Fair Value Measurement | Level 3 | U.S. Treasury securities    
Assets    
Held to maturity securities: $ 0 $ 0