00101 - Document - Document And Entity Information {Elements}
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01102 - Document - Risk/Return Summary {Unlabeled} (American Funds College 2030 FundSM)
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01103 - Schedule - Shareholder Fees
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01104 - Schedule - Annual Fund Operating Expenses
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01105 - Schedule - Expense Example {Transposed}
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01106 - Schedule - Expense Example, No Redemption {Transposed}
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06108 - Document - Risk/Return Summary {Unlabeled} (American Funds College 2027 FundSM)
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06109 - Schedule - Shareholder Fees
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06110 - Schedule - Annual Fund Operating Expenses
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06111 - Schedule - Expense Example {Transposed}
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06112 - Schedule - Expense Example, No Redemption {Transposed}
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06113 - Disclosure - Risk/Return Detail Data {Elements} (American Funds College 2027 FundSM)
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06114 - Document - Risk/Return Summary {Unlabeled} (American Funds College 2024 FundSM)
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06115 - Schedule - Shareholder Fees
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06116 - Schedule - Annual Fund Operating Expenses
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06117 - Schedule - Expense Example {Transposed}
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06118 - Schedule - Expense Example, No Redemption {Transposed}
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06119 - Disclosure - Risk/Return Detail Data {Elements} (American Funds College 2024 FundSM)
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06120 - Document - Risk/Return Summary {Unlabeled} (American Funds College 2021 FundSM)
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06121 - Schedule - Shareholder Fees
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06122 - Schedule - Annual Fund Operating Expenses
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06123 - Schedule - Expense Example {Transposed}
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06124 - Schedule - Expense Example, No Redemption {Transposed}
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06125 - Disclosure - Risk/Return Detail Data {Elements} (American Funds College 2021 FundSM)
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06126 - Document - Risk/Return Summary {Unlabeled} (American Funds College 2018 FundSM)
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06127 - Schedule - Shareholder Fees
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06128 - Schedule - Annual Fund Operating Expenses
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06129 - Schedule - Expense Example {Transposed}
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06130 - Schedule - Expense Example, No Redemption {Transposed}
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06131 - Disclosure - Risk/Return Detail Data {Elements} (American Funds College 2018 FundSM)
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06132 - Document - Risk/Return Summary {Unlabeled} (American Funds College 2015 FundSM)
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06133 - Schedule - Shareholder Fees
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06134 - Schedule - Annual Fund Operating Expenses
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06135 - Schedule - Expense Example {Transposed}
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06136 - Schedule - Expense Example, No Redemption {Transposed}
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06137 - Disclosure - Risk/Return Detail Data {Elements} (American Funds College 2015 FundSM)
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06138 - Document - Risk/Return Summary {Unlabeled} (American Funds College Enrollment FundSM)
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06139 - Schedule - Shareholder Fees
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06140 - Schedule - Annual Fund Operating Expenses
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06141 - Schedule - Expense Example {Transposed}
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06142 - Schedule - Expense Example, No Redemption {Transposed}
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06143 - Disclosure - Risk/Return Detail Data {Elements} (American Funds College Enrollment FundSM)
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