rr_ObjectiveHeading

Investment Objective

rr_ExpenseHeading

Fees and Expenses of the Fund

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment):

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

July 31, 2019

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, I-2, I-3, Administrative Class, Class A, Class C or Class R shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all 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. Investors may pay brokerage commissions on their purchases and sales of Institutional Class, I-2 or I-3 shares of the Fund, which are not reflected in the Example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs 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 the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 37% of the average value of its portfolio.

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Nondiversified Status [Text]

rr_RiskNondiversifiedStatus

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a primary and a secondary broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of I-2 shares (April 30, 2008), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the fees and expenses paid by the I-2 shares. Performance in the Average Annual Total Returns table reflects the impact of sales charges. Because I-3 shares of the Fund had not commenced operations as of December 31, 2017, no performance for I-3 shares is provided. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund measures its performance against a primary benchmark and a secondary benchmark. The Fund's primary benchmark is the Bloomberg Barclays U.S. TIPS 1-10 Year Index.

The Bloomberg Barclays U.S. TIPS: 1-10 Year Index is an unmanaged market index comprised of U.S. Treasury Inflation Protected securities having a maturity of at least 1 year and less than 10 years. The CPI + 500 Basis Points benchmark is created by adding 5% to the annual percentage change in the Consumer Price Index ("CPI"). The CPI is an unmanaged index representing the rate of inflation of the U.S. consumer prices as determined by the US Bureau of Labor Statistics. Lipper Alternative Global Macro Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that, by prospectus language, invest around the world using economic theory to justify the decision-making process. The strategy is typically based on forecasts and analysis about interest rate trends, the general flow of funds, political changes, government policies, intergovernmental relations, and other broad systemic factors. These funds generally trade a wide range of markets and geographic regions, employing a broad range of trading ideas and instruments.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

Bar Chart Footnotes [Text Block]

rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2018 is -2.10%. For the periods shown in the bar chart, the highest quarterly return was 12.61% in the Q2 2009, and the lowest quarterly return was -8.57% in the Q3 2015.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a primary and a secondary broad-based securities market index and an index of similar funds.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.

1 Year

rr_AverageAnnualReturnYear01

1.90%

10 Years

rr_AverageAnnualReturnYear10

2.83%

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

6.41%

1 Year

rr_AverageAnnualReturnYear01

10.34%

10 Years

rr_AverageAnnualReturnYear10

2.94%

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

none

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.105%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.005%

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

341

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,337

Annual Return 2009

rr_AnnualReturn2009

22.99%

Annual Return 2011

rr_AnnualReturn2011

2.44%

Annual Return 2013

rr_AnnualReturn2013

0.77%

Annual Return 2015

rr_AnnualReturn2015

(8.72%)

Annual Return 2017

rr_AnnualReturn2017

13.98%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

(2.10%)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

the highest quarterly return was 12.61% in the Q2 2009

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(8.57%)

1 Year

rr_AverageAnnualReturnYear01

13.98%

10 Years

rr_AverageAnnualReturnYear10

5.29%

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

1.77%

^[5]

1 Year

rr_AverageAnnualReturnYear01

7.90%

^[5]

10 Years

rr_AverageAnnualReturnYear10

3.14%

^[5]

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

none

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.205%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.105%

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

373

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,451

5 Years

rr_AverageAnnualReturnYear05

3.57%

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.425%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.88%

^[1]

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.15%)

^[3],[4]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 118

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

701

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.225%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.88%

^[1]

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.10%)

^[3],[4]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 128

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

732

1 Year

rr_AverageAnnualReturnYear01

13.68%

10 Years

rr_AverageAnnualReturnYear10

5.03%

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

1.00%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.555%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.455%

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

838

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

2,148

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

838

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 2,148

5 Years

rr_AverageAnnualReturnYear05

2.39%

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.425%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.88%

^[1]

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.10%)

^[3],[4]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 324

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,224

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

224

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

1,224

1 Year

rr_AverageAnnualReturnYear01

11.66%

10 Years

rr_AverageAnnualReturnYear10

3.96%

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

none

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.805%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.705%

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

558

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 2,113

5 Years

rr_AverageAnnualReturnYear05

2.91%

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment):

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

July 31, 2019

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, I-2, I-3, Administrative Class, Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all 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. Investors may pay brokerage commissions on their purchases and sales of Institutional Class, I-2 or I-3 shares of the Fund, which are not reflected in the Example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs 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 the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 35% of the average value of its portfolio.

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Nondiversified Status [Text]

rr_RiskNondiversifiedStatus

Issuer Non-Diversification Risk: the risk of focusing investments in a small number of issuers, including being more susceptible to risks associated with a single economic, political or regulatory occurrence than a more diversified portfolio might be. Funds that are "non-diversified" may invest a greater percentage of their assets in the securities of a single issuer (such as bonds issued by a particular state) than funds that are "diversified"

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a primary and a secondary broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of I-2 shares (July 10, 2008), performance information shown in the table for that class is based on the performance of the Fund's Institutional Class shares, adjusted to reflect the fees and expenses paid by I-2 shares. The Administrative Class of the Fund has not commenced operations as of the date of this prospectus. Performance in the Average Annual Total Returns table reflects the impact of sales charges. Because I-3 shares of the Fund had not commenced operations as of December 31, 2017, no performance for I-3 shares is provided. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The Fund measures its performance against a primary benchmark and a secondary benchmark. The Fund's primary benchmark is the Standard & Poor's 500 Composite Stock Price Index ("S&P 500 Index").

The S&P 500 Index is an unmanaged market index generally considered representative of the stock market as a whole. The Index focuses on the large-cap segment of the U.S. equities market. The CPI + 650 Basis Points benchmark is created by adding 6.5% to the annual percentage change in the Consumer Price Index ("CPI"). The CPI is an unmanaged index representing the rate of inflation of the U.S. consumer prices as determined by the US Bureau of Labor Statistics. Lipper Alternative Global Macro Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that, by prospectus language, invest around the world using economic theory to justify the decision-making process. The strategy is typically based on forecasts and analysis about interest rate trends, the general flow of funds, political changes, government policies, intergovernmental relations, and other broad systemic factors. These funds generally trade a wide range of markets and geographic regions, employing a broad range of trading ideas and instruments.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

Bar Chart Footnotes [Text Block]

rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2018 is -3.06%. For the periods shown in the bar chart, the highest quarterly return was 11.93% in the Q2 2009, and the lowest quarterly return was -10.03% in the Q3 2015.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a primary and a secondary broad-based securities market index and an index of similar funds.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.

1 Year

rr_AverageAnnualReturnYear01

21.83%

10 Years

rr_AverageAnnualReturnYear10

8.50%

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

7.90%

1 Year

rr_AverageAnnualReturnYear01

10.34%

10 Years

rr_AverageAnnualReturnYear10

2.94%

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

none

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

1.19%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

^[4],[7]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 232

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,250

Annual Return 2008

rr_AnnualReturn2008

(6.92%)

Annual Return 2010

rr_AnnualReturn2010

10.67%

Annual Return 2012

rr_AnnualReturn2012

17.66%

Annual Return 2014

rr_AnnualReturn2014

(2.35%)

Annual Return 2016

rr_AnnualReturn2016

13.73%

Year to Date Return, Label

rr_YearToDateReturnLabel

The year-to-date return as of June 30, 2018 is -3.06%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2018

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

11.93%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

the lowest quarterly return was -10.03% in the Q3 2015

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2015

5 Years

rr_AverageAnnualReturnYear05

0.75%

1 Year

rr_AverageAnnualReturnYear01

9.56%

^[5]

10 Years

rr_AverageAnnualReturnYear10

2.08%

^[5]

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

(0.45%)

^[5]

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.35%

Other Expenses

rr_OtherExpensesOverAssets

0.91%

^[6]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.45%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

2.39%

^[8]

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

758

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 2,782

5 Years

rr_AverageAnnualReturnYear05

0.66%

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.45%

Other Expenses

rr_OtherExpensesOverAssets

0.91%

^[6]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.55%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

2.44%

^[8]

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

783

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 2,877

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

none

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

1.19%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

^[4],[7]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 257

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,375

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Management Fees

rr_ManagementFeesOverAssets

0.45%

Other Expenses

rr_OtherExpensesOverAssets

0.91%

^[6]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.80%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

2.74%

^[8]

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

1,365

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

3,502

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

1,365

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 3,502

5 Years

rr_AverageAnnualReturnYear05

(0.83%)

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.45%

Other Expenses

rr_OtherExpensesOverAssets

0.91%

^[6]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

3.55%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

3.49%

^[8]

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

1,083

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

3,814

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

1,083

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 3,814

5 Years

rr_AverageAnnualReturnYear05

(0.46%)

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment):

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

July 31, 2019

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, I-2, Class A or Class C shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all 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. Investors may pay brokerage commissions on their purchases and sales of Institutional Class shares or I-2 shares of the Fund, which are not reflected in the Example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs 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 the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 403% of the average value of its portfolio.

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Lose Money [Text]

rr_RiskLoseMoney

It is possible to lose money on an investment in the Fund.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance Information

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns — Institutional Class*

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/17)

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

Performance Additional Market Index [Text]

rr_PerformanceAdditionalMarketIndex

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a primary and a secondary broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

7.77%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 29, 2008

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

10.80%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 29, 2008

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

3.16%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 29, 2008

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

none

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.28%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.22%)

^[11],[12]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 124

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

766

Annual Return 2009

rr_AnnualReturn2009

19.94%

Annual Return 2011

rr_AnnualReturn2011

(1.14%)

Annual Return 2013

rr_AnnualReturn2013

(8.39%)

Annual Return 2015

rr_AnnualReturn2015

(0.27%)

Annual Return 2017

rr_AnnualReturn2017

14.78%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

(0.70%)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

the highest quarterly return was 11.48% in the Q3 2009

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(8.30%)

1 Year

rr_AverageAnnualReturnYear01

14.78%

Since Inception

rr_AverageAnnualReturnSinceInception

6.12%

1 Year

rr_AverageAnnualReturnYear01

13.94%

^[5]

Since Inception

rr_AverageAnnualReturnSinceInception

4.93%

^[5]

1 Year

rr_AverageAnnualReturnYear01

8.36%

^[5]

Since Inception

rr_AverageAnnualReturnSinceInception

4.37%

^[5]

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

1.05%

Other Expenses

rr_OtherExpensesOverAssets

0.21%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.54%

^[10]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.32%

^[13]

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

465

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,816

5 Years

rr_AverageAnnualReturnYear05

3.29%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 29, 2008

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

1.00%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.28%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.22%)

^[11],[12]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 710

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,496

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

710

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

1,496

1 Year

rr_AverageAnnualReturnYear01

8.00%

Since Inception

rr_AverageAnnualReturnSinceInception

5.08%

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

1.15%

Other Expenses

rr_OtherExpensesOverAssets

0.21%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.64%

^[10]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

2.42%

^[13]

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

800

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

2,957

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

800

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 2,957

5 Years

rr_AverageAnnualReturnYear05

2.04%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 29, 2008

Prospectus:

rr_ProspectusTable

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks maximum total return, consistent with prudent investment management.

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. In addition to the fees and expenses described below, you may also be required to pay brokerage commissions on purchases and sales of Institutional Class or I-2 shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares" section on page 103 of the Fund's prospectus, Appendix B to the Fund's prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial advisor.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 100,000

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):

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

Total Annual Fund Operating Expenses do not match the Ratio of Expenses to Average Net Assets Excluding Waivers of the Fund, as set forth in the Financial Highlights table of the Fund's prospectus, because the Ratio of Expenses to Average Net Assets Excluding Waivers reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

76.00%

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund seeks to achieve its investment objective by investing under normal circumstances in multiple alternative strategies, which may be represented by a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940, as amended (the "1940 Act"), Fixed Income Instruments, equity securities, forwards or derivatives, such as options, futures contracts or swap agreements. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom.

The Fund will invest at least 75% of its net assets in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds, or shares of any funds of the PIMCO ETF Trust, an affiliated investment company (collectively, "Underlying PIMCO Funds"), and may also invest in other affiliated and unaffiliated funds (collectively, "Acquired Funds"). Alternative strategies may be represented by, but not limited to, the following Underlying PIMCO Funds: PIMCO Dynamic Bond Fund, PIMCO Credit Opportunities Bond Fund, PIMCO Mortgage Opportunities and Bond Fund, PIMCO RAE Fundamental Advantage PLUS Fund, PIMCO EqS® Long/Short Fund, PIMCO RAE Worldwide Long/Short PLUS Fund, and PIMCO TRENDS Managed Futures Strategy Fund. The Fund may invest in any or all of the Underlying PIMCO Funds, but will not normally invest in every Underlying PIMCO Fund at any particular time. The Fund's investment in a particular Underlying PIMCO Fund normally will not exceed 50% of its net assets. Allocation of the Fund's assets among Acquired Funds, securities, instruments and other investments is determined, in part, on the basis of quantitative methods. The allocations indicated by such quantitative methods remain subject to portfolio manager discretion.

The Fund may obtain exposure to four separate stock portfolios: RAE US Large Model Portfolio, RAE Low Volatility US Model Portfolio, RAE Low Volatility Emerging Markets Model Portfolio and RAE Low Volatility International Model Portfolio (each, a "RAE Model Portfolio," and collectively, the "RAE Model Portfolios"). The stocks are selected by the Fund's sub-adviser, Research Affiliates, LLC ("Sub-Adviser"), from a broad universe of companies which satisfy certain liquidity and capacity requirements. Under normal circumstances equity total return swaps are used to obtain exposure to the RAE Model Portfolios.

The Sub-Adviser uses the RAE® ("RAE") methodology for portfolio construction. The RAE® methodology is a rules-based model that applies a non-capitalization method of creating and weighting a model portfolio of equity securities, within a defined market, and seeks to eliminate the potential overweighting of overpriced equity securities and underweighting of underpriced equity securities associated with market-capitalization equity indexes. Selections are further refined through the use of additional analytic measures and processes designed to achieve enhanced risk-adjusted returns including measures of financial health and adjustments that take momentum into account, among other factors. Actual stock positions in the RAE Model Portfolios, which drift apart from target weights as market prices change, are rebalanced to target weights periodically. The RAE® methodology's systematic portfolio rebalancing reflects a value orientation. Portfolio managers do not have discretion with respect to the allocations determined by the RAE® methodology. The RAE® methodology is not updated according to any predetermined schedule and generally is not expected to be updated during a given year.

The Sub-Adviser provides investment advisory services in connection with the Fund's swap-based exposure to the RAE Model Portfolios by, among other things, providing Pacific Investment Management Company LLC ("PIMCO"), or counterparties designated by PIMCO, with the relevant RAE Model Portfolio for purposes of developing equity total return swaps based on that RAE Model Portfolio. In a typical swap agreement, the Fund will receive the total return of the relevant RAE Model Portfolio from the counterparty to the swap agreement in exchange for paying the counterparty an agreed upon short-term interest rate.

Because the RAE Model Portfolios are proprietary portfolios, there may be a limited number of counterparties willing or able to serve as counterparties to a swap agreement. If such swap agreements are not available, or if swap pricing is unattractive or for other reasons, the Fund may invest in other instruments, "baskets" of stocks, or individual securities to replicate the performance of the relevant RAE Model Portfolio.

The Fund may invest up to 25% of its total assets in commodity-related investments (including Underlying PIMCO Funds such as the PIMCO CommoditiesPLUS® Strategy Fund and PIMCO CommodityRealReturn Strategy Fund®). The Fund may invest in securities denominated in foreign currencies and in U.S. dollar-denominated securities of foreign issuers. The Fund may invest in high yield securities ("junk bonds"). The Fund may invest in securities and instruments that are economically tied to emerging market countries. The Fund may invest in derivative instruments, such as options, futures contracts, options on futures and fixed income swap agreements, subject to applicable law and any other restrictions described in the Fund's prospectus or Statement of Additional Information. The Fund may purchase and sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.

Additional information for the Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

It is possible to lose money on an investment in the Fund. The principal risks of investing in the Fund include risks from direct investments and/or indirect exposure through investment in Acquired Funds. The principal risks of investing in the Fund, which could adversely affect its net asset value, yield and total return are listed below.

The following risks are principal risks of investing in the Fund.

Allocation Risk: the risk that a Fund could lose money as a result of less than optimal or poor asset allocation decisions. The Fund could miss attractive investment opportunities by underweighting markets that subsequently experience significant returns and could lose value by overweighting markets that subsequently experience significant declines

Acquired Fund Risk: the risk that a Fund's performance is closely related to the risks associated with the securities and other investments held by the Acquired Funds and that the ability of a Fund to achieve its investment objective will depend upon the ability of the Acquired Funds to achieve their investment objectives

The following risks are principal risks of investing in the Fund that include risks from direct investments and/or indirect exposure through investment in Acquired Funds.

New/Small Fund Risk: the risk that a new or smaller Fund's performance may not represent how the Fund is expected to or may perform in the long term. In addition, new Funds have limited operating histories for investors to evaluate and new and smaller Funds may not attract sufficient assets to achieve investment and trading efficiencies

Interest Rate Risk: the risk that fixed income securities will decline in value because of an increase in interest rates; a fund with a longer average portfolio duration will be more sensitive to changes in interest rates than a fund with a shorter average portfolio duration

Call Risk: the risk that an issuer may exercise its right to redeem a fixed income security earlier than expected (a call). Issuers may call outstanding securities prior to their maturity for a number of reasons (e.g., declining interest rates, changes in credit spreads and improvements in the issuer's credit quality). If an issuer calls a security that the Fund has invested in, the Fund may not recoup the full amount of its initial investment and may be forced to reinvest in lower-yielding securities, securities with greater credit risks or securities with other, less favorable features

Credit Risk: the risk that the Fund could lose money if the issuer or guarantor of a fixed income security, or the counterparty to a derivative contract, is unable or unwilling to meet its financial obligations

High Yield Risk: the risk that high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") are subject to greater levels of credit, call and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer's continuing ability to make principal and interest payments, and may be more volatile than higher-rated securities of similar maturity

Distressed Company Risk: the risk that securities of distressed companies may be subject to greater levels of credit, issuer and liquidity risk than a portfolio that does not invest in such securities. Securities of distressed companies include both debt and equity securities. Debt securities of distressed companies are considered predominantly speculative with respect to the issuers' continuing ability to make principal and interest payments

Market Risk: the risk that the value of securities owned by the Fund may go up or down, sometimes rapidly or unpredictably, due to factors affecting securities markets generally or particular industries

Issuer Risk: the risk that the value of a security may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer's goods or services

Liquidity Risk: the risk that a particular investment may be difficult to purchase or sell and that the Fund may be unable to sell illiquid securities at an advantageous time or price or achieve its desired level of exposure to a certain sector. Liquidity risk may result from the lack of an active market, reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, causing increased supply in the market due to selling activity

Derivatives Risk: the risk of investing in derivative instruments (such as futures, swaps and structured securities), including leverage, liquidity, interest rate, market, credit and management risks, mispricing or valuation complexity. Changes in the value of the derivative may not correlate perfectly with, and may be more sensitive to market events than, the underlying asset, rate or index, and the Fund could lose more than the initial amount invested. The Fund's use of derivatives may result in losses to the Fund, a reduction in the Fund's returns and/or increased volatility. Over-the-counter ("OTC") derivatives are also subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations to the other party, as many of the protections afforded to centrally-cleared derivative transactions might not be available for OTC derivatives. For derivatives traded on an exchange or through a central counterparty, credit risk resides with the Fund's clearing broker, or the clearinghouse itself, rather than with a counterparty in an OTC derivative transaction. Changes in regulation relating to a mutual fund's use of derivatives and related instruments could potentially limit or impact the Fund's ability to invest in derivatives, limit the Fund's ability to employ certain strategies that use derivatives and/or adversely affect the value of derivatives and the Fund's performance

Futures Contract Risk: the risk that, while the value of a futures contract tends to correlate with the value of the underlying asset that it represents, differences between the futures market and the market for the underlying asset may result in an imperfect correlation. Futures contracts may involve risks different from, and possibly greater than, the risks associated with investing directly in the underlying assets. The purchase or sale of a futures contract may result in losses in excess of the amount invested in the futures contract

Volatility Risk: volatility measures the variability in the price of an investment over time. A higher volatility level signifies an investment's value may fluctuate over a larger range within a short period of time, either up or down. Higher volatility levels may indicate heightened risk of losses. Volatility risk is heightened to the extent the Fund invests in volatility-related instruments, such as futures on volatility-related indices

Model Risk: the risk that the Fund's investment models used in making investment allocation decisions may not adequately take into account certain factors, may contain design flaws or faulty assumptions, and may rely on incomplete or inaccurate data, any of which may result in a decline in the value of an investment in the Fund

Commodity Risk: the risk that investing in commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments

Equity Risk: the risk that the value of equity securities, such as common stocks and preferred securities, may decline due to general market conditions which are not specifically related to a particular company or to factors affecting a particular industry or industries. Equity securities generally have greater price volatility than fixed income securities

Mortgage-Related and Other Asset-Backed Securities Risk: the risks of investing in mortgage-related and other asset-backed securities, including interest rate risk, extension risk, prepayment risk and credit risk

Privately Issued Mortgage-Related Securities Risk: the risk of non-payment because there are no direct or indirect government or agency guarantees of payments in the pools created by non-governmental issuers

Extension Risk: the risk that, in periods of rising interest rates, issuers of mortgage-related and other asset-backed securities may pay principal later than expected, which may reduce the value of the Fund's investment in such securities and may prevent the Fund from receiving higher interest rates on proceeds reinvested

Prepayment Risk: the risk that, in periods of declining interest rates, issuers of mortgage-related and other asset-backed securities may pay principal more quickly than expected, which results in the Fund foregoing future interest income on the portion of the principal repaid early and may result in the Fund being forced to reinvest investment proceeds at lower interest rates

Foreign (Non-U.S.) Investment Risk: the risk that investing in foreign (non-U.S.) securities may result in the Fund experiencing more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies, due to smaller markets, differing reporting, accounting and auditing standards, increased risk of delayed settlement of portfolio transactions or loss of certificates of portfolio securities, and the risk of unfavorable foreign government actions, including nationalization, expropriation or confiscatory taxation, currency blockage, or political changes or diplomatic developments. Foreign securities may also be less liquid and more difficult to value than securities of U.S. issuers

Real Estate Risk: the risk that the Fund's investments in Real Estate Investment Trusts ("REITs") or real estate-linked derivative instruments will subject the Fund to risks similar to those associated with direct ownership of real estate, including losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, zoning laws, regulatory limitations on rents, property taxes and operating expenses. The Fund's investments in REITs or real estate-linked derivative instruments subject it to management and tax risks. In addition, privately traded REITs subject the Fund to liquidity and valuation risk

Senior Loan Risk: the risk that investing in senior loans, including bank loans, exposes the Fund to heightened credit risk, call risk, settlement risk and liquidity risk. If an issuer of a senior loan prepays or redeems the loan prior to maturity, the Fund will have to reinvest the proceeds in other senior loans or instruments that may pay lower interest rates

Emerging Markets Risk: the risk of investing in emerging market securities, primarily increased foreign (non-U.S.) investment risk

Sovereign Debt Risk: the risk that investments in fixed income instruments issued by sovereign entities may decline in value as a result of default or other adverse credit event resulting from an issuer's inability or unwillingness to make principal or interest payments in a timely fashion

Currency Risk: the risk that foreign (non-U.S.) currencies will change in value relative to the U.S. dollar and affect the Fund's investments in foreign (non-U.S.) currencies or in securities that trade in, and receive revenues in, or in derivatives that provide exposure to, foreign (non-U.S.) currencies

Leveraging Risk: the risk that certain transactions of the Fund, such as reverse repurchase agreements, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivative instruments, may give rise to leverage, magnifying gains and losses and causing the Fund to be more volatile than if it had not been leveraged. This means that leverage entails a heightened risk of loss

Small-Cap and Mid-Cap Company Risk: the risk that the value of securities issued by small-capitalization and mid-capitalization companies may go up or down, sometimes rapidly and unpredictably as compared to more widely held securities, due to narrow markets and limited resources of smaller companies. A Fund's investments in smaller companies subject it to greater levels of credit, market and issuer risk

Management Risk: the risk that the investment techniques and risk analyses applied by PIMCO and Research Affiliates, including the use of quantitative models or methods, will not produce the desired results and that legislative, regulatory, or tax restrictions, policies or developments may affect the investment techniques available to PIMCO, Research Affiliates and the individual portfolio managers in connection with managing the Fund. There is no guarantee that the investment objective of the Fund will be achieved

Short Exposure Risk: the risk of entering into short sales, including the potential loss of more money than the actual cost of the investment, and the risk that the third party to the short sale will not fulfill its contractual obligations, causing a loss to the Fund

Tax Risk: the risk that the tax treatment of swap agreements and other derivative instruments, such as commodity-linked derivative instruments, including commodity index-linked notes, swap agreements, commodity options, futures, and options on futures, may be affected by future regulatory or legislative changes that could affect whether income from such investments is "qualifying income" under Subchapter M of the Internal Revenue Code, or otherwise affect the character, timing and/or amount of the Fund's taxable income or gains and distributions

Subsidiary Risk: the risk that, by investing in certain Underlying PIMCO Funds that invest in a subsidiary (each a "Subsidiary"), the Fund is indirectly exposed to the risks associated with a Subsidiary's investments. The Subsidiaries are not registered under the 1940 Act and may not be subject to all the investor protections of the 1940 Act. There is no guarantee that the investment objective of a Subsidiary will be achieved

Value Investing Risk: a value stock may decrease in price or may not increase in price as anticipated by PIMCO if it continues to be undervalued by the market or the factors that the portfolio manager believes will cause the stock price to increase do not occur

Cash Holdings Risk: the risk of holding large cash positions, including lower returns and potential lost opportunities to participate in market appreciation

Convertible Securities Risk: as convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk

Exchange-Traded Fund Risk: the risk that an exchange-traded fund may not track the performance of the index it is designed to track, among other reasons, because of exchange rules, market prices of shares of an exchange-traded fund may fluctuate rapidly and materially, or shares of an exchange-traded fund may trade significantly above or below net asset value, any of which may cause losses to the Fund invested in the exchange-traded fund

Please see "Description of Principal Risks" in the Fund's prospectus for a more detailed description of the risks of investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

The 3 Month USD LIBOR (London Interbank Offered Rate) Index is an average interest rate, determined by the ICE Benchmark Administration, that banks charge one another for the use of short-term money (3 months) in England's Eurodollar market. The Lipper Alternative Multi-Strategy Funds Average is a total return performance average of Funds tracked by Lipper, Inc. that seek total returns through the management of several different hedge-like strategies.

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

Bar Chart Footnotes [Text Block]

rr_BarChartFootnotesTextBlock

*The year-to-date return as of June 30, 2018 is -0.29%. For the periods shown in the bar chart, the highest quarterly return was 2.60% in the Q4 2017, and the lowest quarterly return was -2.30% in the Q3 2015.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average returns compare with the returns of a broad-based securities market index and an index of similar funds.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are for Institutional Class shares only. After-tax returns for other classes will vary.

1 Year

rr_AverageAnnualReturnYear01

1.20%

Inception Date

rr_AverageAnnualReturnInceptionDate

Dec. 30, 2014

Prospectus:

rr_ProspectusTable

Since Inception

rr_AverageAnnualReturnSinceInception

1.77%

^[9]

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

1.15%

Other Expenses

rr_OtherExpensesOverAssets

0.05%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.19%

^[10]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.34%

^[15]

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

603

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 2,457

Annual Return 2016

rr_AnnualReturn2016

7.36%

Year to Date Return, Label

rr_YearToDateReturnLabel

The year-to-date return as of June 30, 2018 is -0.29%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2018

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

2.60%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

the lowest quarterly return was -2.30% in the Q3 2015

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2015

Since Inception

rr_AverageAnnualReturnSinceInception

2.61%

1 Year

rr_AverageAnnualReturnYear01

3.32%

^[5]

Inception Date

rr_AverageAnnualReturnInceptionDate

Dec. 30, 2014

^[5]

Prospectus:

rr_ProspectusTable

Since Inception

rr_AverageAnnualReturnSinceInception

1.46%

^[5]

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

1.25%

Other Expenses

rr_OtherExpensesOverAssets

0.05%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.29%

^[10]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.44%

^[15]

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

634

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 2,560

Since Inception

rr_AverageAnnualReturnSinceInception

2.51%

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

3.75%

Management Fees

rr_ManagementFeesOverAssets

1.30%

Other Expenses

rr_OtherExpensesOverAssets

0.05%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.59%

^[10]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.74%

^[15]

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

1,072

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

3,129

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

1,072

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 3,129

Since Inception

rr_AverageAnnualReturnSinceInception

0.95%

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment):

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

July 31, 2019

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

Example. The Example is intended to help you compare the cost of investing in Institutional Class, Administrative Class or Class A shares of the Fund with the costs of investing in other mutual funds. The Example assumes that you invest $10,000 in the noted class of shares for the time periods indicated, and then redeem all 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. Investors may pay brokerage commissions on their purchases and sales of Institutional Class shares of the Fund, which are not reflected in the Example. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs 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 the Annual Fund Operating Expenses or in the Example tables, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 15% of the average value of its portfolio.

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Lose Money [Text]

rr_RiskLoseMoney

It is possible to lose money on an investment in the Fund.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance Information

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns — Institutional Class*

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns (for periods ended 12/31/17)

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

Performance Additional Market Index [Text]

rr_PerformanceAdditionalMarketIndex

The performance information shows summary performance information for the Fund in a bar chart and an Average Annual Total Returns table. The information provides some indication of the risks of investing in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns compare with the returns of a broad-based securities market index and an index of similar funds. Absent any applicable fee waivers and/or expense limitations, performance would have been lower. The bar chart shows performance of the Fund's Institutional Class shares. For periods prior to the inception date of Administrative Class shares (June 30, 2008), performance information shown in the table for those shares are based on the performance of the Fund's Institutional Class shares, adjusted to reflect the actual expenses paid by Administrative Class shares. Performance in the Average Annual Total Returns table reflects the impact of sales charges. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

Performance for the Fund is updated daily and quarterly and may be obtained as follows: daily updates on the net asset value and performance page at http://investments.pimco.com/DailyPerformance and quarterly updates at http://investments.pimco.com/QuarterlyPerformance.

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

4.86%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2008

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

4.31%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2008

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

none

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.16%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.73%

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

326

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,371

Annual Return 2010

rr_AnnualReturn2010

10.77%

Annual Return 2012

rr_AnnualReturn2012

9.62%

Annual Return 2014

rr_AnnualReturn2014

4.72%

Annual Return 2016

rr_AnnualReturn2016

8.32%

Year to Date Return, Label

rr_YearToDateReturnLabel

The year-to-date return as of June 30, 2018 is -0.95%.

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Jun. 30, 2018

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

10.78%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

the lowest quarterly return was -4.90% in the Q3 2015

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2015

5 Years

rr_AverageAnnualReturnYear05

4.37%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2008

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

1.89%

^[5]

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2008

^[5]

Prospectus:

rr_ProspectusTable

5 Years

rr_AverageAnnualReturnYear05

2.19%

^[5]

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2008

^[5]

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

none

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.41%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.98%

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

404

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,654

5 Years

rr_AverageAnnualReturnYear05

4.10%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2008

Prospectus:

rr_ProspectusTable

Maximum Deferred Sales Charge (Load) (as a percentage of the lower of the original purchase price or redemption price)

rr_MaximumDeferredSalesChargeOverOther

1.00%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.61%

^[2]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

1.18%

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

990

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

2,322

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

990

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 2,322

5 Years

rr_AverageAnnualReturnYear05

2.69%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2008

Prospectus:

rr_ProspectusTable

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to maximize real return, consistent with preservation of real capital and prudent investment management.

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. In addition to the fees and expenses described below, you may also be required to pay brokerage commissions on purchases and sales of Institutional Class shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible funds offered by PIMCO Equity Series and PIMCO Funds. More information about these and other discounts is available in the "Classes of Shares" section on page 103 of the Fund's prospectus, Appendix B to the Fund's prospectus (Financial Firm-Specific Sales Charge Waivers and Discounts) or from your financial advisor.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 100,000

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):

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees

Total Annual Fund Operating Expenses do not match the Ratio of Expenses to Average Net Assets Excluding Waivers of the Fund, as set forth in the Financial Highlights table of the Fund's prospectus, because the Ratio of Expenses to Average Net Assets Excluding Waivers reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

19.00%

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The PIMCO REALPATH® 2020 Fund (the "Fund") is intended for investors seeking professional management of a comprehensive asset allocation strategy for retirement savings. The Fund is managed for shareholders that plan to retire or begin withdrawing assets around the year 2020, the Fund's target year. This is the "self-elected" year of retirement for the investors in the Fund. The primary difference between the PIMCO REALPATH® Funds is their asset allocation, which varies depending on the number of years left until the "self-elected" year of retirement indicated in the PIMCO REALPATH® Fund's name. The Fund's allocation is intended to meaningfully reduce risk and increasingly focus on preservation of capital as the target retirement date of the Fund nears. An investment in the Fund is not guaranteed, and you may experience losses, including losses near, at, or after the target year indicated in the Fund's name. There is no guarantee that the Fund will provide adequate income at and through your retirement.

In managing the Fund, Pacific Investment Management Company LLC ("PIMCO") uses a four-step approach consisting of 1) developing and re-evaluating a long-term asset allocation "glide path"; 2) performing tactical allocation adjustments around the glide path; 3) developing a series of relative value strategies designed to add value beyond the target allocation; and 4) utilizing hedging techniques to manage risks.

The Fund seeks to achieve its investment objective by investing under normal circumstances in a combination of affiliated and unaffiliated funds, which may or may not be registered under the Investment Company Act of 1940 (the "1940 Act"), Fixed Income Instruments of varying maturities, equity securities, forwards and derivatives. "Fixed Income Instruments" include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private- sector entities. The Fund will invest in such funds, securities, instruments and other investments to the extent permitted under the 1940 Act, or any exemptive relief therefrom. The Fund may invest in Institutional Class or Class M shares of any funds of the Trust and PIMCO Equity Series, an affiliated open-end investment company, except funds of funds ("Underlying PIMCO Funds"), and may also invest in other affiliated funds, including funds of PIMCO ETF Trust, and unaffiliated funds (collectively, "Acquired Funds"). As used in the investment objective, "real return" equals total return less the estimated cost of inflation, which is typically measured by the change in an official inflation measure, and "real capital" equals capital less the estimated cost of inflation measured by the change in an official inflation measure.

The Fund's long-term asset allocations are based on a "glide path" developed by PIMCO and are based on quantitative and qualitative data relating to various risk metrics, long-term market trends, correlation of asset types and actuarial assumptions of life expectancy and retirement. The Fund's current glide path asset allocation is based on its target date, which is the year in the name of the Fund. The target date assumes a retirement age of 65, and time horizons based on current longevity of persons reaching retirement in average health. Choosing a PIMCO REALPATH® Fund targeting an earlier date represents a more conservative choice; choosing a PIMCO REALPATH® Fund targeting a later date represents a more aggressive choice. The glide path is designed not only to reduce risk as the target retirement date nears, but is also designed to provide investors diversification across a variety of asset classes, with an emphasis on asset classes that can protect against inflation over time. This is achieved by emphasizing allocations to inflation related assets, such as Treasury-Inflation Protected Securities ("TIPS"), commodities, and real estate, which complement exposures from traditional assets, such as U.S. and international equities, U.S. bonds and short-term instruments. The glide path changes over time, generally becoming more conservative as the Fund approaches the target date.

The chart below shows the glide path and illustrates how the allocation among the asset classes changes before and at the target date. The glide path allocation at the target date remains constant beyond that date. As described in greater detail below, PIMCO may adjust the Fund's actual asset allocation exposures from the long-term targets specified by the glide path based on PIMCO's real-time views of perceived risks and opportunities. PIMCO may also choose to modify the target asset allocations of the glide path itself from time to time.

REALPATH® Glide Path

PIMCO performs tactical allocation adjustments around the glide path, meaning PIMCO may vary the Fund's actual asset allocation exposures from the glide path's long-term targets based on PIMCO's real-time views of perceived risks and opportunities. PIMCO will generally reduce variation from the glide path's targets as the Fund approaches the target year in the Fund's name.

The actual asset allocation at a given time may vary from the target strategic asset allocations based on PIMCO's tactical allocation adjustments and on market movements. These variances will be limited to a certain range relative to the target allocations under normal circumstances. The table below illustrates the permissible range in which the allocations may vary, as measured monthly.

	Years to Retirement	Target Allocation	Maximum Underweight	Maximum Overweight
Total Equity Allocation
	40	80.0%	-15%	15%
	30	80.0%	-15%	15%
	20	69.8%	-15%	15%
	10	53.9%	-20%	10%
	0	35.8%	-20%	10%

	Years to Retirement	Target Allocation	Maximum Underweight	Maximum Overweight
Total Commodity and Real Estate Allocation
	40	8.0%	-8%	8%
	30	8.0%	-8%	8%
	20	7.3%	-7%	7%
	10	6.1%	-6%	6%
	0	4.7%	-4%	4%

	Years to Retirement	Target Allocation	Maximum Underweight	Maximum Overweight
Total Fixed Income Allocation
	40	12.0%	-12%	15%
	30	12.0%	-12%	15%
	20	23.0%	-15%	15%
	10	40.0%	-10%	20%
	0	59.5%	-10%	20%

The tactical allocation adjustments described above are driven by PIMCO's secular and cyclical views, which are formulated by considering various qualitative and quantitative factors relating to the U.S. and non-U.S. economies, and securities and commodities markets. These factors include projected growth trends in the U.S. and non-U.S. economies, forecasts for interest rates and the relationship between short- and long-term interest rates (yield curve), current and projected trends in inflation, relative valuation levels in the equity, fixed income, commodity and real estate markets and various segments within those markets, the outlook and projected growth of various industrial sectors, information relating to business cycles, borrowing needs and the cost of capital, political trends, data relating to trade balances, labor information and relevant legislative or public policy changes. These "top down" macro-economic factors, as well as more micro "bottom up" factors that are unique to narrowly defined market sectors, are used to identify attractive relative value strategies. These strategies seek to modestly enhance the Fund's returns in a manner within the allocation ranges relative to the glide path targets described above. When reallocating the Fund's investment exposures, PIMCO may do so by adjusting the mix of affiliated or unaffiliated funds, or by investing directly in securities, instruments and other investments, based on its ongoing analyses of the global economy, financial markets and the relative valuation and risks presented by the aforementioned vehicles and instruments. In selecting and reallocating the mix of affiliated or unaffiliated funds, PIMCO considers a wide range of factors, including a fund's objective, strategies, risks, performance, fees, and other metrics. In seeking to limit the amount of acquired fund fees and expenses that may be borne by Fund investors, PIMCO may choose to invest in particular affiliated or unaffiliated funds, so long as such investment decisions are consistent with the Fund's investment objective, glide path and tactical asset allocations. While PIMCO can adjust the Fund's investment exposures daily, including the vehicles or instruments used to gain those exposures, material shifts in investment exposures typically take place over longer periods of time.

As the Fund reaches the target year indicated in the Fund's name, it may be combined with the PIMCO REALPATH® Income Fund, provided that the Board of Trustees determines that the combination would be in the best interests of the Fund and its shareholders. Prior to any combination, which may occur on or after the target year indicated in the Fund's name, the Fund will provide shareholders with advance notice regarding the combination. If and when such a combination occurs, shareholders of the Fund will become shareholders of the PIMCO REALPATH® Income Fund.

As part of its investment process, PIMCO will also seek to reduce exposure to certain risks by implementing various hedging transactions. These hedging transactions seek to reduce a Fund's exposure to certain severe, unanticipated market events that could significantly detract from returns. PIMCO intends to utilize these hedging transactions once the Fund is within 10 years of the target retirement date or at such other times as deemed appropriate by PIMCO.

Once the tactical asset allocation adjustments, relative value strategies and risk hedging strategies have been determined, PIMCO then evaluates various combinations of affiliated or unaffiliated funds, securities, instruments and other investments to obtain the desired exposures and invests accordingly. Additional information for these Underlying PIMCO Funds can be found in the Statement of Additional Information and/or the Underlying PIMCO Funds' prospectuses and financial reports. Additional Underlying PIMCO Funds may be added or deleted in the future without shareholder notification.