Derivative Financial Instruments - Narrative (Details) |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2024
USD ($)
counterparty
|
Dec. 31, 2023
USD ($)
|
|
| Derivative [Line Items] | ||
| Number of central counterparties | counterparty | 2 | |
| Notional value | $ 1,582,334,000 | $ 1,906,092,000 |
| Derivative, fair value, amount offset against collateral, net | 8,000,000 | 9,000,000 |
| Estimated accumulated gain (loss) to be reclassified in next 12 months | (34,000,000) | |
| Cash collateral held relative to derivative exposure | 0 | 0 |
| Cash collateral pledged | 8,000,000 | $ 9,000,000 |
| CME | ||
| Derivative [Line Items] | ||
| Notional value | $ 1,500,000,000 | |
| Percent of total notional derivative contracts | 92.20% | |
| Amount of variation margin included as settlement | $ (39,000,000) | |
| LCH | ||
| Derivative [Line Items] | ||
| Notional value | $ 100,000,000 | |
| Percent of total notional derivative contracts | 7.80% | |
| Amount of variation margin included as settlement | $ (3,000,000) |