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Investments (Tables)
 6 Months Ended
Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Available-For-Sale Investments
The amortized cost, gross unrealized gains, gross unrealized losses and fair values of interest-bearing securities, which are considered available-for-sale, by type of security were as follows (in millions):
Types of securities as of June 30, 2024Amortized
cost		Gross
unrealized
gains		Gross
unrealized
losses		Fair
values
U.S. Treasury bills$995 $— $— $995 
Money market mutual funds7,678 — — 7,678 
Other short-term interest-bearing securities139 — — 139 
Total interest-bearing securities$8,812 $— $— $8,812 

Types of securities as of December 31, 2023Amortized
cost		Gross
unrealized
gains		Gross
unrealized
losses		Fair
values
U.S. Treasury bills$— $— $— $— 
Money market mutual funds10,266 — — 10,266 
Other short-term interest-bearing securities138 — — 138 
Total interest-bearing securities$10,404 $— $— $10,404 
Schedule of Fair Values by Classification
The fair values of interest-bearing securities by location in the Condensed Consolidated Balance Sheets were as follows (in millions):
Condensed Consolidated Balance Sheets locationsJune 30, 2024December 31, 2023
Cash and cash equivalents$8,812 $10,404 
Total interest-bearing securities$8,812 $10,404