XML 32 R151.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Commitments, Guarantees and Contingencies - Commission on Release (Details) - CAD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Disclosure of contingent liabilities [line items]    
Accrued expenses and taxes $ 3,251 $ 3,137