XML 136 R90.htm IDEA: XBRL DOCUMENT v3.21.1
ACCOUNTS RECEIVABLE AND OTHER - Schedule of Accounts Receivable and Other (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]      
Accounts receivable $ 10,113 $ 11,129  
Prepaid expenses and other assets 6,335 5,636  
Restricted cash 2,395 1,595  
Sustainable resources 85 109 $ 333
Accounts receivable and other $ 18,928 $ 18,469