Regulatory Capital - Leverage-Based Capital Metrics (Details) $ in Millions |
Sep. 30, 2026
USD ($)
|
Dec. 31, 2025
USD ($)
|
|---|---|---|
| JPMorgan Chase Bank, N.A. | ||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Adjusted average assets | $ 4,093,659 | $ 3,766,709 |
| Tier 1 leverage ratio | 0.072 | 0.078 |
| Total leverage exposure | $ 5,030,695 | $ 4,571,728 |
| SLR | 0.059 | 0.064 |
| JPMorgan Chase & Co. | ||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Adjusted average assets | $ 4,965,475 | $ 4,472,394 |
| Tier 1 leverage ratio | 0.065 | 0.069 |
| Total leverage exposure | $ 5,932,201 | $ 5,302,001 |
| SLR | 0.055 | 0.058 |