Derivative Instruments and Hedging Activities - Narrative (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||
| Noncash collateral placed with counterparties | $ 248 | $ 328 |
| Cash collateral placed with counterparties | $ 4 | |
| Cash collateral received from counterparties | $ 9 |