American Funds New Economy A (ANEFX) N-CSRS31 Jul 24Certified semi-annual shareholder report (management investment company)Financial data

Company Profile

Form N-CSR Cover

Form N-CSR Cover	6 Months Ended
Form N-CSR Cover	May 31, 2024
Shareholder Report [Line Items]
Document Type	N-CSRS
Amendment Flag	false
Registrant Name	New Economy Fund
Entity Central Index Key	0000719608
Entity Investment Company Type	N-1A
Document Period End Date	May 31, 2024

Shareholder Report

Shareholder Report	6 Months Ended
Shareholder Report	May 31, 2024 USD ($) Holdings
Shareholder Report [Line Items]
Document Type	N-CSRS
Amendment Flag	false
Registrant Name	New Economy Fund
Entity Central Index Key	0000719608
Entity Investment Company Type	N-1A
Document Period End Date	May 31, 2024
The New Economy Fund (Class 529-A)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class 529-A
Trading Symbol	CNGAX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-A $ 0.78 % * *Annualized
Expenses Paid, Amount	$ 42	[1]
Expense Ratio, Percent	0.78%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class 529-C)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class 529-C
Trading Symbol	CNGCX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
Additional Information Phone Number	(800) 421-4225
Additional Information Website	capitalgroup.com/mutual-fund-literature-529C
Expenses [Text Block]	What were the fund costs Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-C $ 1.55 % * *Annualized
Expenses Paid, Amount	$ 84
Expense Ratio, Percent	1.55%	[1]
Net Assets	$ 33,005,000,000
Holdings Count	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class 529-F-1)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class 529-F-1
Trading Symbol	CNGFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-F-1 $ 0.61 % * *Annualized
Expenses Paid, Amount	$ 33
Expense Ratio, Percent	0.61%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions $ Total number of portfolio 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class 529-E)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class 529-E
Trading Symbol	CNGEX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? 10,000 Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-E $ 1.02 % * *Annualized
Expenses Paid, Amount	$ 55
Expense Ratio, Percent	1.02%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector assets
The New Economy Fund (Class 529-F-2)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class 529-F-2
Trading Symbol	FNEEX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-F-2 $ 0.53 % * *Annualized
Expenses Paid, Amount	$ 29
Expense Ratio, Percent	0.53%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class 529-F-3)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class 529-F-3
Trading Symbol	FNNEX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? investment Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-F-3 $ 0.47 % * *Annualized
Expenses Paid, Amount	$ 25
Expense Ratio, Percent	0.47%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by
The New Economy Fund (Class 529-T)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class 529-T
Trading Symbol	TENEX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-T $ 0.56 % * *Annualized
Expenses Paid, Amount	$ 30
Expense Ratio, Percent	0.56%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector percent
The New Economy Fund (Class T)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class T
Trading Symbol	TNEEX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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 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? 10,000 Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class T $ 0.49 % * *Annualized
Expenses Paid, Amount	$ 26
Expense Ratio, Percent	0.49%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings sector
The New Economy Fund (Class A)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class A
Trading Symbol	ANEFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 0.75 % * *Annualized
Expenses Paid, Amount	$ 41
Expense Ratio, Percent	0.75%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector percent net
The New Economy Fund (Class C)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class C
Trading Symbol	ANFCX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? 10,000 Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.51 % * *Annualized
Expenses Paid, Amount	$ 81
Expense Ratio, Percent	1.51%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class R-6)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class R-6
Trading Symbol	RNGGX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-6 $ 0.41 % * *Annualized
Expenses Paid, Amount	$ 22
Expense Ratio, Percent	0.41%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class F-1)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class F-1
Trading Symbol	ANFFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class F-1 $ 0.79 % * *Annualized
Expenses Paid, Amount	$ 43
Expense Ratio, Percent	0.79%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class F-2)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class F-2
Trading Symbol	NEFFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class F-2 $ 0.51 % * *Annualized
Expenses Paid, Amount	$ 28
Expense Ratio, Percent	0.51%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class F-3)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class F-3
Trading Symbol	FNEFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? on Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class F-3 $ 0.41 % * *Annualized
Expenses Paid, Amount	$ 22
Expense Ratio, Percent	0.41%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class R-1)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class R-1
Trading Symbol	RNGAX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $ 10,000 Class R-1 $ 1.49 % * *Annualized
Expenses Paid, Amount	$ 80
Expense Ratio, Percent	1.49%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class R-2)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class R-2
Trading Symbol	RNGBX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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-R
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-2 $ 1.49 % * * Annualized
Expenses Paid, Amount	$ 80
Expense Ratio, Percent	1.49%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class R-2E)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class R-2E
Trading Symbol	RNNEX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-2E $ 1.20 % * *Annualized
Expenses Paid, Amount	$ 65
Expense Ratio, Percent	1.20%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class R-3)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class R-3
Trading Symbol	RNGCX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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 10,000 Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-3 $ 1.05 % * *Annualized
Expenses Paid, Amount	$ 57
Expense Ratio, Percent	1.05%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class R-4)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class R-4
Trading Symbol	RNGEX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-4 $ 0.76 % * *Annualized
Expenses Paid, Amount	$ 41
Expense Ratio, Percent	0.76%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class R-5)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class R-5
Trading Symbol	RNGFX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-5 $ 0.46 % * *Annualized
Expenses Paid, Amount	$ 25
Expense Ratio, Percent	0.46%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions) $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector
The New Economy Fund (Class R-5E)
Shareholder Report [Line Items]
Fund Name	The New Economy Fund®
Class Name	Class R-5E
Trading Symbol	RNGHX
Annual or Semi-Annual Statement [Text Block]	This semi-annual shareholder report contains important information about The New Economy Fund for the period from December 1, 2023 to May 31, 2024.
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
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? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-5E $ 0.56 % * *Annualized
Expenses Paid, Amount	$ 30
Expense Ratio, Percent	0.56%	[1]
Net Assets	$ 33,005,000,000
Holdings Count \| Holdings	223
Investment Company, Portfolio Turnover	19%
Additional Fund Statistics [Text Block]	Key fund statistics Fund net assets (in millions $ Total number of portfolio holdings 223 Portfolio turnover rate 19 %
Holdings [Text Block]	Portfolio holdings by sector

[1]Annualized

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	May 31, 2024
The New Economy Fund (Class 529-A) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class 529-A) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class 529-A) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class 529-A) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class 529-A) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class 529-A) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class 529-A) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class 529-A) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class 529-C) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class 529-C) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class 529-C) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class 529-C) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class 529-C) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class 529-C) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class 529-C) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class 529-C) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class 529-F-1) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class 529-F-1) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class 529-F-1) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class 529-F-1) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class 529-F-1) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class 529-F-1) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class 529-F-1) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class 529-F-1) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class 529-F-2) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class 529-F-2) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class 529-F-2) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class 529-F-2) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class 529-F-2) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class 529-F-2) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class 529-F-2) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class 529-F-2) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class 529-F-3) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class 529-F-3) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class 529-F-3) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class 529-F-3) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class 529-F-3) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class 529-F-3) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class 529-F-3) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class 529-F-3) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class 529-T) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class 529-T) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class 529-T) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class 529-T) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class 529-T) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class 529-T) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class 529-T) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class 529-T) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class T) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class T) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class T) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class T) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class T) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class T) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class T) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class T) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class A) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class A) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class A) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class A) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class A) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class A) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class A) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class A) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class C) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class C) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class C) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class C) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class C) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class C) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class C) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class C) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class R-6) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class R-6) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class R-6) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class R-6) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class R-6) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class R-6) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class R-6) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class R-6) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class F-1) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class F-1) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class F-1) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class F-1) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class F-1) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class F-1) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class F-1) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class F-1) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class F-2) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class F-2) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class F-2) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class F-2) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class F-2) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class F-2) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class F-2) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class F-2) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class F-3) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class F-3) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class F-3) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class F-3) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class F-3) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class F-3) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class F-3) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class F-3) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class R-1) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class R-1) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class R-1) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class R-1) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class R-1) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class R-1) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class R-1) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class R-1) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class R-2) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class R-2) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class R-2) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class R-2) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class R-2) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class R-2) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class R-2) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class R-2) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class R-2E) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class R-2E) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class R-2E) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class R-2E) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class R-2E) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class R-2E) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class R-2E) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class R-2E) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.20%
The New Economy Fund (Class R-3) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class R-3) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class R-3) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class R-3) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class R-3) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class R-3) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class R-3) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class R-3) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class R-4) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class R-4) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class R-4) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class R-4) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class R-4) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class R-4) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class R-4) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class R-4) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class R-5) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class R-5) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class R-5) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class R-5) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class R-5) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class R-5) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class R-5) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class R-5) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class R-5E) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class R-5E) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class R-5E) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class R-5E) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class R-5E) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class R-5E) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class R-5E) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class R-5E) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%
The New Economy Fund (Class 529-E) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	35.80%
The New Economy Fund (Class 529-E) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	17.80%
The New Economy Fund (Class 529-E) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
The New Economy Fund (Class 529-E) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.20%
The New Economy Fund (Class 529-E) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.10%
The New Economy Fund (Class 529-E) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.10%
The New Economy Fund (Class 529-E) \| Other Securities [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.10%
The New Economy Fund (Class 529-E) \| Short Term Securities and Other Assets Less Liabilities [Member]
Holdings [Line Items]
Percent of Net Asset Value	2%