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Net Capital Requirements - Partnership's Capital Figures for U.S. and Canada Broker-Dealer Subsidiaries (Detail) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Edward D. Jones & Co., L. P [Member]    
Regulatory Capital Requirements    
Net capital $ 1,038 $ 1,306
Net capital in excess of the minimum required $ 965 $ 1,248
Net capital as a percentage of aggregate debit items 28.40% 45.00%
Net capital after anticipated capital withdrawals, as a percentage of aggregate debit items 13.30% 23.10%
Canada [Member]    
Regulatory Capital Requirements    
Regulatory risk-adjusted capital $ 103 $ 56
Regulatory risk-adjusted capital in excess of the minimum required $ 102 $ 47