XML 50 R37.htm IDEA: XBRL DOCUMENT v3.23.2
Revenue (Change in Deferred Revenue) (Details)
$ in Millions
 6 Months Ended
Jun. 30, 2023
USD ($)
Revenue [Abstract]  
Balance at beginning of period $ 121
Deferral of revenue 116
Recognition of deferred revenue (130)
Balance at end of period $ 107