v3.26.1
Shareholder Report
6 Months Ended
Apr. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name New World Fund, Inc.
Entity Central Index Key 0001073330
Entity Investment Company Type N-1A
Document Period End Date Apr. 30, 2026
New World Fund® - Class A  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class A
Trading Symbol NEWFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-A. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-A
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class A
$
50
0.95
%
*
*Annualized.
Expenses Paid, Amount $ 50
Expense Ratio, Percent 0.95% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio
holdings
by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class C  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class C
Trading Symbol NEWCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-C. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-C
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class C
$
88
1.70
%
*
*Annualized.
Expenses Paid, Amount $ 88
Expense Ratio, Percent 1.70% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key
fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class T  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class T
Trading Symbol TNWFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class T
$
37
0.70
%
*
*Annualized.
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.70% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in
millions
)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class F-1  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class F-1
Trading Symbol NWFFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F1. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-F1
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class F-1
$
50
0.96
%
*
*Annualized.
Expenses Paid, Amount $ 50
Expense Ratio, Percent 0.96% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by
sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class F-2  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class F-2
Trading Symbol NFFFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F2. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-F2
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class F-2
$
35
0.68
%
*
*Annualized.
Expenses Paid, Amount $ 35
Expense Ratio, Percent 0.68% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(
percent
of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class F-3  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class F-3
Trading Symbol FNWFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F3. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-F3
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class F-3
$
30
0.57
%
*
*Annualized.
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.57% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key
fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class 529-A  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class 529-A
Trading Symbol CNWAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529A. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529A
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-A
$
51
0.97
%
*
*Annualized.
Expenses Paid, Amount $ 51
Expense Ratio, Percent 0.97% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key
fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class 529-C  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class 529-C
Trading Symbol CNWCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529C. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529C
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-C
$
91
1.74
%
*
*Annualized.
Expenses Paid, Amount $ 91
Expense Ratio, Percent 1.74% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in
millions
)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class 529-E  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class 529-E
Trading Symbol CNWEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529E. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529E
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-E
$
62
1.19
%
*
*Annualized.
Expenses Paid, Amount $ 62
Expense Ratio, Percent 1.19% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class 529-T  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class 529-T
Trading Symbol TWNFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-T
$
39
0.74
%
*
*Annualized.
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.74% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class 529-F-1  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class 529-F-1
Trading Symbol CNWFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529F1. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529F1
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-F-1
$
40
0.76
%
*
*Annualized.
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.76% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class 529-F-2  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class 529-F-2
Trading Symbol FNFWX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529F2. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529F2
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-F-2
$
35
0.68
%
*
*Annualized.
Expenses Paid, Amount $ 35
Expense Ratio, Percent 0.68% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class 529-F-3  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class 529-F-3
Trading Symbol FWWNX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529F3. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-529F3
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-F-3
$
32
0.61
%
*
*Annualized.
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.61% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class R-1  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class R-1
Trading Symbol RNWAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R1. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R1
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-1
$
86
1.66
%
*
*Annualized.
Expenses Paid, Amount $ 86
Expense Ratio, Percent 1.66% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class R-2  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class R-2
Trading Symbol RNWBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R2. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R2
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-2
$
87
1.67
%
*
*Annualized.
Expenses Paid, Amount $ 87
Expense Ratio, Percent 1.67% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class R-2E  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class R-2E
Trading Symbol RNEBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R2E. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R2E
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-2E
$
71
1.37
%
*
*Annualized.
Expenses Paid, Amount $ 71
Expense Ratio, Percent 1.37% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class R-3  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class R-3
Trading Symbol RNWCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R3. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R3
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-3
$
64
1.22
%
*
*Annualized.
Expenses Paid, Amount $ 64
Expense Ratio, Percent 1.22% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class R-4  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class R-4
Trading Symbol RNWEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R4. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R4
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-4
$
48
0.92
%
*
*Annualized.
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.92% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class R-5E  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class R-5E
Trading Symbol RNWHX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R5E. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R5E
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-5E
$
38
0.72
%
*
*Annualized.
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.72% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class R-5  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class R-5
Trading Symbol RNWFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R5. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R5
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-5
$
32
0.62
%
*
*Annualized.
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.62% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
New World Fund® - Class R-6  
Shareholder Report [Line Items]  
Fund Name New World Fund®
Class Name Class R-6
Trading Symbol RNWGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about New World Fund (the "fund") for the period from November 1, 2025 to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R6. You can also request this information by contacting us at (800) 421-4225.
Additional Information Phone Number (800) 421-4225
Additional Information Website capitalgroup.com/mutual-fund-literature-R6
Expenses [Text Block]
What were the fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-6
$
30
0.57
%
*
*Annualized.
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.57% [1]
Net Assets $ 85,562,000,000
Holdings Count | Holding 613
Investment Company, Portfolio Turnover 28.00%
Additional Fund Statistics [Text Block]
Key fund
statistics
Fund net assets (in millions)
$
85,562
Total number of portfolio holdings613
Portfolio turnover rate28
%
Holdings [Text Block]
Portfolio holdings by sector 
(percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
[1] Annualized.