Average Annual Total Returns		12 Months Ended	50 Months Ended	60 Months Ended	78 Months Ended	95 Months Ended	109 Months Ended	120 Months Ended	124 Months Ended	188 Months Ended
Average Annual Total Returns	Nov. 28, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024
Class A
Prospectus [Line Items]
Average Annual Return, Percent		4.80%		2.20%				1.48%		0.94%
Performance Inception Date	May 01, 2009
Class 529-A
Prospectus [Line Items]
Average Annual Return, Percent		4.75%		2.16%				1.43%		0.91%
Performance Inception Date	May 01, 2009
Class ABLE-A
Prospectus [Line Items]
Average Annual Return, Percent		4.84%		2.21%	2.12%
Performance Inception Date	Jul. 13, 2018
Class C
Prospectus [Line Items]
Average Annual Return, Percent		3.68%		2.15%				1.46%		0.94%
Performance Inception Date	May 01, 2009
Class 529-C
Prospectus [Line Items]
Average Annual Return, Percent		3.62%		2.11%				1.43%		0.91%
Performance Inception Date	May 01, 2009
Class 529-E
Prospectus [Line Items]
Average Annual Return, Percent		4.64%		2.12%				1.41%		0.90%
Performance Inception Date	May 01, 2009
Class F-1
Prospectus [Line Items]
Average Annual Return, Percent		4.64%		2.08%				1.32%		0.84%
Performance Inception Date	May 01, 2009
Class F-2
Prospectus [Line Items]
Average Annual Return, Percent		4.94%		2.25%				1.49%		0.95%
Performance Inception Date	May 01, 2009
Class F-3
Prospectus [Line Items]
Average Annual Return, Percent		5.01%		2.29%		1.94%
Performance Inception Date	Jan. 27, 2017
Class 529-F-2
Prospectus [Line Items]
Average Annual Return, Percent		4.89%	2.61%
Performance Inception Date	Oct. 30, 2020
Class 529-F-3
Prospectus [Line Items]
Average Annual Return, Percent		4.95%	2.64%
Performance Inception Date	Oct. 30, 2020
Class 529-F-1
Prospectus [Line Items]
Average Annual Return, Percent		4.82%		2.19%				1.44%		0.92%
Performance Inception Date	May 01, 2009
Class ABLE-F-2
Prospectus [Line Items]
Average Annual Return, Percent		4.96%	2.65%
Performance Inception Date	Oct. 30, 2020
Class R-1
Prospectus [Line Items]
Average Annual Return, Percent		4.94%		2.25%				1.48%		0.94%
Performance Inception Date	May 01, 2009
Class R-2
Prospectus [Line Items]
Average Annual Return, Percent		3.88%		1.66%				0.95%		0.60%
Performance Inception Date	May 01, 2009
Class R-3
Prospectus [Line Items]
Average Annual Return, Percent		4.34%		1.91%				1.17%		0.74%
Performance Inception Date	May 01, 2009
Class R-4
Prospectus [Line Items]
Average Annual Return, Percent		4.65%		2.08%				1.33%		0.85%
Performance Inception Date	May 01, 2009
Class R-5
Prospectus [Line Items]
Average Annual Return, Percent		4.96%		2.26%				1.50%		0.96%
Performance Inception Date	May 01, 2009
Class R-6
Prospectus [Line Items]
Average Annual Return, Percent		5.01%		2.29%				1.54%		0.98%
Performance Inception Date	May 01, 2009
Class R-2E
Prospectus [Line Items]
Average Annual Return, Percent		4.18%		1.83%				1.09%	1.06%
Performance Inception Date	Aug. 29, 2014
Class R-5E
Prospectus [Line Items]
Average Annual Return, Percent		4.86%		2.20%			1.58%
Performance Inception Date	Nov. 20, 2015
USTREAS T-Bill Auction Ave 3 Mon (reflects no deductions for sales charges, account fees, expenses or U.S. federal income taxes)
Prospectus [Line Items]
Average Annual Return, Percent		5.28%		2.63%				1.86%		1.21%