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Investments (Tables)
9 Months Ended
Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]  
Pre-tax Gains and Losses for Marketable Securities
Pre-tax gains and losses for marketable securities are summarized below (in millions):

Three Months Ended September 30, 2023Nine Months Ended September 30, 2023
 (in millions)
Loss/(gain) on marketable securities sold during the period$— $(593)
Dividend income and other
(13)
Total loss/(gain) on marketable securities$$(606)