Business Developments And Risks And Uncertainties (Narrative) (Detail) $ in Millions |
6 Months Ended | ||
|---|---|---|---|
|
Jul. 01, 2024
USD ($)
|
Jan. 01, 2024
USD ($)
|
Jun. 30, 2024
USD ($)
Segments
|
|
| Business Acquisition [Line Items] | |||
| Number of operating segments | Segments | 3 | ||
| Puerto Rico Electric Power Authority [Member] | |||
| Business Acquisition [Line Items] | |||
| Outstanding insured bonds | $ 792 | ||
| National Public Finance Guarantee Corporation [Member] | Puerto Rico Electric Power Authority [Member] | |||
| Business Acquisition [Line Items] | |||
| Claims payments | $ 16 | ||
| Subsequent Event [Member] | National Public Finance Guarantee Corporation [Member] | Puerto Rico Electric Power Authority [Member] | |||
| Business Acquisition [Line Items] | |||
| Claims payments | $ 122 |