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INTANGIBLE ASSETS AT FAIR VALUE
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
INTANGIBLE ASSETS AT FAIR VALUE INTANGIBLE ASSETS AT FAIR VALUE
The following table presents the digital assets name, cost basis, fair value, and number of units for each significant digital asset holding as of December 31, 2024 and 2023:
Digital asset nameDecember 31, 2024
Cost basis (1)Fair valueNumber of units held
(In millions, except for number of units held)
Bitcoin$6 $39 $412.7 
Ether$3 $10 $3,049.8 
Digital asset nameDecember 31, 2023
Cost basis (1)Fair valueNumber of units held
(In millions, except for number of units held)
Bitcoin$6 $17 $412.7 
Ether$3 $7 $3,041.6 
(1) Cost basis of the digital assets is net of $21 million of impairment losses recognized prior to the adoption of ASU 2023-08.
The following table summarizes the digital assets rollforward activity during the years ended December 31, 2024 and 2023:
December 31, 2024December 31, 2023
(in millions)
Balance at beginning of year
$24 $9 
Adoption of ASU 2023-08— 1 
Gains included in net income25 14 
Balance at end of year
$49 $24 
The method used by the Company for determining the cost basis of its digital assets was the weighted average price method.