Vanguard LifeStrategy Conservative Growth Fund Average Annual Total Returns - Retail Prospectus [Member]	12 Months Ended	60 Months Ended	120 Months Ended
	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Conservative Growth Composite Index (reflects no deduction for fees, expenses, or taxes)[Member]
Prospectus [Line Items]
Average Annual Return, Percent	12.96%	4.49%	6.38%
Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)[Member]
Prospectus [Line Items]
Average Annual Return, Percent	7.30%	(0.36%)	2.01%
Dow Jones U.S. Total Stock Market Float Adjusted Index (reflects no deduction for fees, expenses, or taxes)[Member]
Prospectus [Line Items]
Average Annual Return, Percent	17.05%	13.07%	14.21%
Investor Shares
Prospectus [Line Items]
Average Annual Return, Percent	12.86%	4.24%	6.12%
Investor Shares \| After Taxes on Distributions
Prospectus [Line Items]
Average Annual Return, Percent	10.90%	2.69%	4.81%
Investor Shares \| After Taxes on Distributions and Sales
Prospectus [Line Items]
Average Annual Return, Percent	8.10%	2.82%	4.42%