Shareholder Report, Holdings (Details) - Capital Group Central Cash Fund - Class M |
Apr. 30, 2026 |
|---|---|
| Holdings [Line Items] | |
| Percent of Net Asset Value | 100.00% |
| U.S. Treasury bills [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 47.49% |
| Federal agency bills & notes [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 36.63% |
| Repurchase agreements [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.26% |
| U.S. Treasury bonds & notes [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.55% |
| Other assets less liabilities [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.07% |