EQUITY ACCOUNTED INVESTMENTS EQUITY ACCOUNTED INVESTMENTS - Narrative (Details) $ in Millions	6 Months Ended
Jun. 30, 2022 USD ($)
Equity Accounted Income - Narrative [Abstract]
Investment Accounted For Using Equity Method, Additions, Net Of Disposals	$ (89)

Investment Accounted For Using Equity Method, Additions, Net Of Disposals

No definition available.

Name:	bam_InvestmentAccountedForUsingEquityMethodAdditionsNetOfDisposals
Namespace Prefix:	bam_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration