v3.26.1
INVESTMENTS - Summary of Investments by Major Security Type (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Debt and Equity Securities, FV-NI [Line Items]    
Cost $ 827 $ 826
Gross Unrealized Gains / Upward Adjustments 270 281
Gross Unrealized Losses / Downward Adjustments (649) (525)
Carrying Value 448 582
Equity securities with readily determinable fair values    
Debt and Equity Securities, FV-NI [Line Items]    
Cost 715 715
Gross Unrealized Gains / Upward Adjustments 0 11
Gross Unrealized Losses / Downward Adjustments (419) (298)
Carrying Value 296 428
Equity securities of private entities    
Debt and Equity Securities, FV-NI [Line Items]    
Cost 112 111
Gross Unrealized Gains / Upward Adjustments 270 270
Gross Unrealized Losses / Downward Adjustments (230) (227)
Carrying Value $ 152 $ 154