DERIVATIVES - Narrative (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Derivative [Line Items] | ||
| Cash and securities collateral for derivative contract | $ 24,500 | $ 20,800 |
| Cash and securities collateral | 140 | 144 |
| Net liability derivative positions with credit risk-related contingent | 0 | 0 |
| S&P 500, Nasdaq, Russell 2000 And Emerging Market Indices | ||
| Derivative [Line Items] | ||
| Initial margin requirement | 901 | 810 |
| U.S. Treasury Notes, U.S. Treasury Bonds And Ultra-Long Bonds | ||
| Derivative [Line Items] | ||
| Initial margin requirement | 175 | 128 |
| Euro Stoxx, FTSE100, Topix, ASX200 and EAFE Indices | ||
| Derivative [Line Items] | ||
| Initial margin requirement | $ 27 | $ 26 |