v3.23.1
Non-marketable Equity Securities
3 Months Ended
Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]  
Non-marketable Equity Securities Non-marketable Equity Securities
Our non-marketable equity securities are investments in privately-held companies without readily determinable fair values. The following table summarizes our non-marketable equity securities that were measured using measurement alternative and equity method (in millions):
March 31, 2023December 31, 2022
Non-marketable equity securities under measurement alternative:
Initial cost$6,388 $6,388 
Cumulative upward adjustments293 293 
Cumulative impairment/downward adjustments(532)(497)
Carrying value6,149 6,184 
Non-marketable equity securities under equity method18 17 
Total$6,167 $6,201