XML 36 R13.htm IDEA: XBRL DOCUMENT v3.22.0.1
Cash and Cash Equivalents
12 Months Ended
Dec. 31, 2021
Cash and Cash Equivalents [Abstract]  
Cash and Cash Equivalents
4. Cash and Cash Equivalents

The following table summarizes the components of our cash and cash equivalents (amounts in millions):

 At December 31,
 20212020
Cash$354 $268 
Foreign government treasury bills34 34 
Money market funds10,035 8,345 
Cash and cash equivalents$10,423 $8,647