v3.25.2
Commitments and Contingencies - Additional Information (Detail) - USD ($)
shares in Millions
 6 Months Ended
Oct. 01, 2024
Jun. 30, 2025
Loss Contingencies [Line Items]    
Investment commitments   $ 1,200,000,000
Amount of securities on loan subject to indemnification   317,000,000,000
Collateral for indemnified securities   337,000,000,000
Fair value of indemnified securities   0
Global Infrastructure Management, LLC [Member]    
Loss Contingencies [Line Items]    
Contingent consideration at fair value   4,500,000,000
Fair value of deferred stock   $ 4,300,000,000
Global Infrastructure Management, LLC [Member] | First contingent payment [Member] | Minimum [Member]    
Loss Contingencies [Line Items]    
Contingent payments 4.0 4.0
Global Infrastructure Management, LLC [Member] | First contingent payment [Member] | Maximum [Member]    
Loss Contingencies [Line Items]    
Contingent payments 5.2 5.2