Shareholder Report, Holdings (Details) - Capital Group Core Bond Completion Fund - CBCFX |
Jun. 30, 2025 |
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|---|---|---|---|---|
| U.S. corporate bonds, notes & loans [Member] | ||||
| Holdings [Line Items] | ||||
| Percent of Net Asset Value | 42.69% | |||
| Corporate bonds, notes & loans of issuers outside the U.S. [Member] | ||||
| Holdings [Line Items] | ||||
| Percent of Net Asset Value | 16.06% | |||
| Asset-backed obligations [Member] | ||||
| Holdings [Line Items] | ||||
| Percent of Net Asset Value | 18.25% | |||
| Mortgage-backed obligations [Member] | ||||
| Holdings [Line Items] | ||||
| Percent of Net Asset Value | 14.01% | |||
| Bonds & notes of governments & government agencies outside the U.S. [Member] | ||||
| Holdings [Line Items] | ||||
| Percent of Net Asset Value | 2.37% | |||
| U.S. Treasury bonds & notes [Member] | ||||
| Holdings [Line Items] | ||||
| Percent of Net Asset Value | 1.97% | |||
| Municipals [Member] | ||||
| Holdings [Line Items] | ||||
| Percent of Net Asset Value | 1.53% | |||
| Short-term securities & other assets less liabilities [Member] | ||||
| Holdings [Line Items] | ||||
| Percent of Net Asset Value | 3.12% | [1] | ||
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