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Risk/Return: rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName T. Rowe Price Personal Strategy Funds, Inc.
Prospectus Date rr_ProspectusDate Oct. 01, 2012
T. Rowe Price Personal Strategy Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
SUMMARY

T. Rowe Price Personal Strategy Income Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The fund seeks the highest total return over time consistent with a primary emphasis on income and
Objective, Secondary [Text Block] rr_ObjectiveSecondaryTextBlock a secondary emphasis on capital growth.
Expense [Heading] rr_ExpenseHeading Fees and Expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock This table describes the fees and expenses that you may pay if you buy and hold shares of the fund.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption
Fees and Expenses of the Fund

Shareholder fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption
Annual fund operating expenses
(expenses that you pay each year as a
percentage of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 62.0% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 62.00%
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees The figure shown under “Total annual fund operating expenses after fee waiver/expense reimbursement” does not match the “Ratio of expenses to average net assets” shown in the Financial Highlights table, as that figure does not include acquired fund fees and expenses.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading
Investments, Risks, and Performance

Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock The fund pursues its objective by investing in a diversified portfolio typically consisting of approximately 40% stocks, 40% bonds, and 20% money market securities. Domestic stocks are drawn from the overall U.S. market. International stocks are selected primarily from large companies in developed markets but may also include investments in emerging markets. Bonds, which can include foreign issues, are primarily investment grade (i.e., assigned one of the four highest credit ratings) and are chosen across the entire government, corporate, and mortgage-backed bond markets. Maturities reflect the manager’s outlook for interest rates.

T. Rowe Price may decide to overweight or underweight a particular asset class based on our outlook for the economy and financial markets. Under normal conditions, the fund’s allocation to the broad asset classes will be within the following ranges: stocks (30%-50%); bonds (30%-50%); and money markets (0-30%). When deciding upon allocations within these prescribed limits, we may favor fixed income securities if the economy is expected to slow sufficiently to hurt corporate profit growth. When strong economic growth is expected, we may favor stocks. And when selecting particular stocks, we will examine relative values and prospects among growth- and value-oriented stocks, domestic and international stocks, small- to large-cap stocks, and stocks of companies involved in activities related to commodities and other real assets. This process draws heavily upon T. Rowe Price’s proprietary stock research expertise. While the fund maintains a well-diversified portfolio, its portfolio manager may at a particular time shift stock selection toward markets or market sectors that appear to offer attractive value and appreciation potential.

Much the same security selection process applies to bonds. For example, when deciding whether to adjust allocations among high yield “junk” bonds, international bonds, and emerging market bonds, we weigh such factors as the outlook for the economy and corporate earnings, currency valuations, and the yield advantage that lower-rated bonds may offer over investment-grade bonds. Securities may be sold for a variety of reasons, such as to effect a change in asset allocation, secure a gain, limit a loss, or redeploy assets into more promising opportunities.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock As with any mutual fund, there is no guarantee that the fund will achieve its objective. The fund’s share price fluctuates, which means you could lose money by investing in the fund. The fund has partial exposure to a variety of risks in proportion to the amount it invests in stocks, bonds, and money market securities. The principal risks of investing in this fund are summarized as follows:

Asset allocation risk The fund’s overall allocations to stocks and bonds, and the allocations to the various asset classes and market sectors within those broad categories, could cause the fund to underperform other funds with a similar investment objective.

Risks of stock investing Stocks generally fluctuate in value more than bonds and may decline significantly over short time periods. There is a chance that stock prices overall will decline because stock markets tend to move in cycles, with periods of rising prices and falling prices. The value of a stock in which the fund invests may decline due to general weakness in the stock market or because of factors that affect a company or a particular industry.

Small- and medium-sized companies often have less experienced management, more limited financial resources, and less publicly available information than larger companies. Stocks of smaller companies may have limited trading markets and tend to be more sensitive to changes in overall economic conditions. To the extent the fund invests in companies that derive their profits from commodities and other real assets, it is subject to the risk that periods of low inflation will lessen relative returns and cause the fund to underperform other comparable stock funds.

Risks of bond and money market investing Bonds and money market securities have three main sources of risk. Interest rate risk is the risk that a rise in interest rates will cause the price of a debt security held by the fund to fall. Securities with longer maturities typically suffer greater declines than those with shorter maturities. Mortgage-backed securities can react somewhat differently to interest rate changes because falling rates can cause losses of principal due to increased mortgage prepayments and rising rates can lead to decreased prepayments and greater volatility. Credit risk is the risk that an issuer of a debt security will default (fail to make scheduled interest or principal payments), potentially reducing the fund’s income level and share price. This risk is increased when a security is downgraded or the perceived creditworthiness of the issuer deteriorates. Liquidity risk is the risk that the fund may not be able to sell a holding in a timely manner or at a desired price.

While the fund’s bond investments are expected to primarily be investment-grade, the fund may invest in bonds that are rated below investment-grade, also known as high yield or “junk” bonds, including those with the lowest credit rating. High yield bond issuers are more likely to suffer an adverse change in financial condition that would result in the inability to meet a financial obligation. Accordingly, the securities they issue carry a higher risk of default and should be considered speculative. The fund’s exposure to credit risk, in particular, is increased to the extent it invests in high yield bonds.

Foreign investing risk This is the risk that the fund’s investments in foreign securities may be adversely affected by political and economic conditions overseas, reduced liquidity, or decreases in foreign currency values relative to the U.S. dollar. These risks are heightened for the fund’s investments in emerging markets.
Risk Lose Money [Text] rr_RiskLoseMoney The fund’s share price fluctuates, which means you could lose money by investing in the fund.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The bar chart showing calendar year returns and the average annual total returns table indicate risk by illustrating how much returns can differ from one year to the next and how fund performance compares with that of a comparable market index. The fund’s past performance (before and after taxes) is not necessarily an indication of future performance.

The fund can also experience short-term performance swings, as shown by the best and worst calendar quarter returns during the years depicted.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart showing calendar year returns and the average annual total returns table indicate risk by illustrating how much returns can differ from one year to the next and how fund performance compares with that of a comparable market index.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-800-225-5132
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress troweprice.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The fund’s past performance (before and after taxes) is not necessarily an indication of future performance.
Bar Chart [Heading] rr_BarChartHeading
Personal Strategy Income Fund
Calendar Year Returns
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
     Quarter
Ended		      Total
Return
Best Quarter     6/30/09     13.03%
Worst Quarter     12/31/08        -10.97%

The fund’s return for the six months ended 6/30/12 was 5.64%.
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns

Periods ended
December 31, 2011
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or individual retirement account.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock In addition, the average annual total returns table shows hypothetical after-tax returns to suggest how taxes paid by a shareholder may influence returns. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or individual retirement account.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock Updated performance information is available through troweprice.com or may be obtained by calling 1-800-225-5132.
T. Rowe Price Personal Strategy Income Fund | T. Rowe Price Personal Strategy Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Redemption fee rr_RedemptionFeeOverRedemption none
Maximum account fee rr_MaximumAccountFee 20 [1]
Management fees rr_ManagementFeesOverAssets 0.45%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.18%
Acquired fund fees and expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.15%
Total annual fund operating expenses rr_ExpensesOverAssets 0.78%
Fee waiver/expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.15% [2]
Total annual fund operating expenses after fee waiver/expense reimbursement rr_NetExpensesOverAssets 0.63% [3]
1 year rr_ExpenseExampleYear01 64
3 years rr_ExpenseExampleYear03 202
5 years rr_ExpenseExampleYear05 351
10 years rr_ExpenseExampleYear10 786
2002 rr_AnnualReturn2002 (3.37%)
2003 rr_AnnualReturn2003 18.58%
2004 rr_AnnualReturn2004 9.95%
2005 rr_AnnualReturn2005 5.19%
2006 rr_AnnualReturn2006 9.64%
2007 rr_AnnualReturn2007 7.26%
2008 rr_AnnualReturn2008 (20.38%)
2009 rr_AnnualReturn2009 25.47%
2010 rr_AnnualReturn2010 11.68%
2011 rr_AnnualReturn2011 0.89%
Year to Date Return, Label rr_YearToDateReturnLabel The fund’s return for the six months ended
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2012
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.64%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 13.03%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (10.97%)
1 Year rr_AverageAnnualReturnYear01 0.89%
5 Years rr_AverageAnnualReturnYear05 3.84%
10 Years rr_AverageAnnualReturnYear10 5.78%
T. Rowe Price Personal Strategy Income Fund | Returns after taxes on distributions | T. Rowe Price Personal Strategy Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.11%
5 Years rr_AverageAnnualReturnYear05 2.78%
10 Years rr_AverageAnnualReturnYear10 4.76%
T. Rowe Price Personal Strategy Income Fund | Returns after taxes on distributions and sale of fund shares | T. Rowe Price Personal Strategy Income Fund
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.70%
5 Years rr_AverageAnnualReturnYear05 2.77%
10 Years rr_AverageAnnualReturnYear10 4.50%
T. Rowe Price Personal Strategy Income Fund | Morningstar Moderately Conservative Target Risk (reflects no deduction for fees, expenses, or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.51%
5 Years rr_AverageAnnualReturnYear05 4.03%
10 Years rr_AverageAnnualReturnYear10 5.76%
T. Rowe Price Personal Strategy Income Fund | Combined Index Portfolio (reflects no deduction for fees, expenses, or taxes)
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.38% [4]
5 Years rr_AverageAnnualReturnYear05 3.04% [4]
10 Years rr_AverageAnnualReturnYear10 4.62% [4]
T. Rowe Price Personal Strategy Income Fund | Lipper Mixed-Asset Target Allocation Conservative Funds Index
  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 2.53%
5 Years rr_AverageAnnualReturnYear05 3.69%
10 Years rr_AverageAnnualReturnYear10 4.37%
[1] Subject to certain exceptions, accounts with a balance of less than $10,000 are charged an annual $20 fee.
[2] T. Rowe Price Associates, Inc. is required to permanently waive a portion of its management fee charged to the fund in an amount sufficient to fully offset any acquired fund fees and expenses related to investments in other T. Rowe Price mutual funds. The amount of the waiver will vary each fiscal year in proportion to the amount invested in other T. Rowe Price mutual funds. The T. Rowe Price funds would be required to seek regulatory approval in order to terminate this arrangement.
[3] The figure shown under "Total annual fund operating expenses after fee waiver/expense reimbursement" does not match the "Ratio of expenses to average net assets" shown in the Financial Highlights table, as that figure does not include acquired fund fees and expenses.
[4] Combined Index Portfolio is an unmanaged portfolio composed of 40% stocks (32%-34% Wilshire 5000 Index and 6%-8% MSCI EAFE Index), 40% bonds (Barclays Capital U.S. Aggregate Index), and 20% money market securities (Citigroup 3-Month Treasury Bill Index) through 6/30/08. From 7/1/08, the portfolio is composed of 40% stocks (28%-32% Russell 3000 Index and 8%-12% MSCI All-Country World Ex-USA Index), 40% bonds (Barclays U.S. Aggregate Index), and 20% money market securities (Citigroup 3-Month Treasury Bill Index). The indices and percentages may vary over time.