Net Assets Investment Company, Portfolio Turnover C000226800 Capital Group Central Corporate Bond Fund (Class M) Bloomberg U.S. Aggregate Index [Member] Financial Services Sector [Member] Healthcare Sector [Member] Other Bonds and Notes [Member] Other Bonds & Notes [Member] Other Corporate Bonds and Notes [Member] Other Corporate Bonds & Notes [Member] Short Term Securities and Other Assets Less Liabilities [Member] Short Term Securities & Other Assets Less Liabilities [Member] US Treasury Bonds and Notes [Member] US Treasury Bonds & Notes [Member] Investment Type [Axis]