XML 73 R54.htm IDEA: XBRL DOCUMENT v3.21.1
Accounts Receivable, Net - Accounts Receivable Sales Arrangements (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Accounts Receivable Sales Arrangements [Abstract]      
Uncollected accounts receivable sold and derecognized $ 93   $ 136
Accounts Receivable      
Accounts Receivable Sales Arrangements [Abstract]      
Accounts receivable sales $ 107 $ 53