XML 90 R67.htm IDEA: XBRL DOCUMENT v3.21.2
EQUITY ACCOUNTED INVESTMENTS EQUITY ACCOUNTED INVESTMENTS - Narrative (Details)
$ in Millions
6 Months Ended
Jun. 30, 2021
USD ($)
Disclosure of detailed information about business combination [line items]  
Investment Accounted For Using Equity Method, Additions, Net Of Disposals $ 1,497