Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	DWS GLOBAL/INTERNATIONAL FUND, INC.
Prospectus Date	rr_ProspectusDate	May 01, 2014
DWS RREEF Global Infrastructure Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	DWS RREEF Global Infrastructure Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The fund seeks total return from both capital appreciation and current income.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	These are the fees and expenses you may pay when you buy and hold shares. You may qualify for sales charge discounts if you and your immediate family invest, or agree to invest in the future, at least $50,000 in DWS funds. More information about these and other discounts is available from your financial professional and in Choosing a Share Class (p. 39) and Purchase and Redemption of Shares in the fund's Statement of Additional Information (SAI) (p. II-15).
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a % 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 may indicate higher transaction costs and may mean higher taxes if you are investing in a taxable account. These costs are not reflected in annual fund operating expenses or in the expense example, and can affect the fund's performance. Portfolio turnover rate for fiscal year 2013: 132%.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	132.00%
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your immediate family invest, or agree to invest in the future, at least $50,000 in DWS funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 50,000
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:
Expense Example, No Redemption Narrative [Text Block]	rr_ExpenseExampleNoRedemptionNarrativeTextBlock	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Main investments. Under normal circumstances, the fund invests at least 80% of net assets in the securities of US and non-US infrastructure-related companies. For purposes of the fund's 80% investment policy, the term "net assets" means the fund's net assets, plus the amount of any borrowings for investment purposes. The fund considers a company to be an infrastructure-related company if at least 50% of its non-cash assets are infrastructure assets or 50% of its gross income or net profits are derived, directly or indirectly, from the ownership, management, construction, operation, utilization or financing of infrastructure assets. Examples of infrastructure assets include transportation assets (such as toll roads, bridges, airports and seaports), utility assets (such as generating stations, gas and electric lines, water and sewer facilities, and communications networks) and social assets (such as hospitals, schools, and subsidized housing). The fund will invest 25% or more of its total assets in securities of companies engaged principally in infrastructure-related companies. The fund may invest in companies of any market capitalization. Under normal circumstances, the fund invests mainly in equity securities, though it may also invest in fixed-income securities without limitation. The fund allocates its assets among various regions and countries, including emerging market countries, and normally invests most of its assets in issuers that are organized or located outside the US or that do a substantial amount of business outside the US. Management process. In choosing securities, portfolio management uses a combination of two analytical disciplines: Top-down research. Portfolio management analyzes various factors, including infrastructure market dynamics (such as supply/demand conditions), the economic environment (such as interest rates, inflation and economic growth), expected capital flow dynamics and exchange rate conditions. Bottom-up research. Portfolio management analyzes characteristics and investment prospects of a particular security relative to others in its local market to actively manage the fund's exposure to individual securities within each region. Disciplined valuation analysis drives this decision-making process, guiding portfolio management to invest in securities it believes can provide superior returns over the long-term, and to sell those that it believes no longer represent the strongest prospects. Securities Lending. The fund may lend securities (up to one-third of total assets) to approved institutions.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	The fund will invest 25% or more of its total assets in securities of companies engaged principally in infrastructure-related companies. The fund may invest in companies of any market capitalization.
Risk [Heading]	rr_RiskHeading	Main Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	There are several risk factors that could hurt the fund's performance, cause you to lose money or cause the fund's performance to trail that of other investments. The fund may not achieve its investment objective, and is not intended to be a complete investment program. 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 governmental agency. Stock market risk. When stock prices fall, you should expect the value of your investment to fall as well. Stock prices can be hurt by poor management on the part of the stock's issuer, shrinking product demand and other business risks. These may affect single companies as well as groups of companies. In addition, movements in financial markets may adversely affect a stock's price, regardless of how well the company performs. To the extent that the fund invests in a particular geographic region or market sector, performance will be affected by that region's general performance. Concentration risk. Any fund that concentrates in a particular segment of the market will generally be more volatile than a fund that invests more broadly. Any market price movements, regulatory or technological changes, or economic conditions affecting the particular segment of the market in which the fund concentrates may have a significant impact on the fund's performance. Foreign investment risk. The fund faces the risks inherent in foreign investing. Adverse political, economic or social developments could undermine the value of the fund's investments or prevent the fund from realizing the full value of its investments. Financial reporting standards for companies based in foreign markets differ from those in the US. Additionally, foreign securities markets generally are smaller and less liquid than US markets. To the extent that the fund invests in non-US dollar denominated foreign securities, changes in currency exchange rates may affect the US dollar value of foreign securities or the income or gain received on these securities. Security selection risk. The securities in the fund's portfolio may decline in value. Portfolio management could be wrong in its analysis of industries, companies, economic trends, the relative attractiveness of different securities or other matters. Non-diversification risk. The fund is classified as non-diversified under the Investment Company Act of 1940, as amended. This means that the fund may invest in securities of relatively few issuers. Thus, the performance of one or a small number of portfolio holdings can affect overall performance. Small company risk. Small company stocks tend to be more volatile than medium-sized or large company stocks. Because stock analysts are less likely to follow small companies, less information about them is available to investors. Industry-wide reversals may have a greater impact on small companies, since they may lack the financial resources of larger companies. Small company stocks are typically less liquid than large company stocks. Interest rate risk. When interest rates rise, prices of debt securities generally decline. The longer the duration of the fund's debt securities, the more sensitive it will be to interest rate changes. (As a general rule, a 1% rise in interest rates means a 1% fall in value for every year of duration.) Emerging markets risk. Foreign investment risks are greater in emerging markets than in developed markets. Investments in emerging markets are often considered speculative. Liquidity risk. In certain situations, it may be difficult or impossible to sell an investment in an orderly fashion at an acceptable price. Credit risk. The fund's performance could be hurt if an issuer of a debt security suffers an adverse change in financial condition that results in a payment default, security downgrade or inability to meet a financial obligation. Credit risk is greater for lower-rated securities. Because the issuers of high-yield debt securities or junk bonds (debt securities rated below the fourth highest credit rating category) may be in uncertain financial health, the prices of their debt securities can be more vulnerable to bad economic news, or even the expectation of bad news, than investment-grade debt securities. High-yield debt securities are considered speculative, and credit risk for high-yield securities is greater than for higher-rated securities. Counterparty risk. A financial institution or other counterparty with whom the fund does business, or that underwrites, distributes or guarantees any investments or contracts that the fund owns or is otherwise exposed to, may decline in financial health and become unable to honor its commitments. This could cause losses for the fund or could delay the return or delivery of collateral or other assets to the fund. Pricing risk. If market conditions make it difficult to value some investments, the fund may value these investments using more subjective methods, such as fair value pricing. In such cases, the value determined for an investment could be different than the value realized upon such investment's sale. As a result, you could pay more than the market value when buying fund shares or receive less than the market value when selling fund shares. Securities lending risk. Any decline in the value of a portfolio security that occurs while the security is out on loan is borne by the fund and will adversely affect performance. Also, there may be delays in recovery of securities loaned or even a loss of rights in the collateral should the borrower of the securities fail financially while holding the security. Active trading risk. The fund may trade actively. This could raise transaction costs (thus lowering returns) and could mean increased taxable distributions to shareholders and distributions that will be taxable to shareholders at higher federal income tax rates.
Risk Lose Money [Text]	rr_RiskLoseMoney	There are several risk factors that could hurt the fund's performance, cause you to lose money or cause the fund's performance to trail that of other investments.
Risk Nondiversified Status [Text]	rr_RiskNondiversifiedStatus	Non-diversification risk. The fund is classified as non-diversified under the Investment Company Act of 1940, as amended. This means that the fund may invest in securities of relatively few issuers. Thus, the performance of one or a small number of portfolio holdings can affect overall performance.
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 governmental agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Past Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	How a fund's returns vary from year to year can give an idea of its risk; so can comparing fund performance to overall market performance (as measured by an appropriate market index). Past performance may not indicate future results. All performance figures below assume that dividends were reinvested. For more recent performance figures, go to dws-investments.com (the Web site does not form a part of this prospectus) or call the phone number included in this prospectus.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	How a fund's returns vary from year to year can give an idea of its risk; so can comparing fund performance to overall market performance (as measured by an appropriate market index).
Performance Additional Market Index [Text]	rr_PerformanceAdditionalMarketIndex	The Advisor believes the additional Dow Jones Brookfield Global Infrastructure Index represents the fund's overall investment process.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	dws-investments.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance may not indicate future results.
Bar Chart [Heading]	rr_BarChartHeading	CALENDAR YEAR TOTAL RETURNS (%) (Class A)
Bar Chart Narrative [Text Block]	rr_BarChartNarrativeTextBlock	These returns do not include sales charges, if any, and would be lower if they did. Returns for other classes were different and are not shown here.
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	These returns do not include sales charges, if any, and would be lower if they did.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 17.52%, Q3 2010  Worst Quarter: -8.84%, Q1 2009 Year-to-Date as of 3/31/2014: 5.81%
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Returns (For periods ended 12/31/2013 expressed as a %)
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns (which are shown only for Class A and would be different for other classes) reflect the historical highest individual federal income tax rates, but do not reflect any state or local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns (which are shown only for Class A and would be different for other classes)
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns (which are shown only for Class A and would be different for other classes) reflect the historical highest individual federal income tax rates, but do not reflect any state or local taxes. Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan. Index comparison began on 6/30/08.
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The Advisor believes the additional Dow Jones Brookfield Global Infrastructure Index represents the fund's overall investment process.
DWS RREEF Global Infrastructure Fund | Class A
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases, as % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	5.75%
Maximum deferred sales charge (load), as % of redemption proceeds	rr_MaximumDeferredSalesChargeOverOther	none
Redemption/exchange fee on shares owned less than 15 days, as % of redemption proceeds	rr_RedemptionFeeOverRedemption	2.00%
Account Maintenance Fee (annually, for fund account balances below $10,000 and subject to certain exceptions)	rr_MaximumAccountFee	20
Management fee	rr_ManagementFeesOverAssets	0.90%
Distribution/service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	0.23%
Other expenses	rr_OtherExpensesOverAssets	0.29%
Total annual fund operating expenses	rr_ExpensesOverAssets	1.42%
1 Year	rr_ExpenseExampleYear01	711
3 Years	rr_ExpenseExampleYear03	999
5 Years	rr_ExpenseExampleYear05	1,307
10 Years	rr_ExpenseExampleYear10	2,179
1 Year	rr_ExpenseExampleNoRedemptionYear01	711
3 Years	rr_ExpenseExampleNoRedemptionYear03	999
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,307
10 Years	rr_ExpenseExampleNoRedemptionYear10	2,179
2009	rr_AnnualReturn2009	28.76%
2010	rr_AnnualReturn2010	12.14%
2011	rr_AnnualReturn2011	15.29%
2012	rr_AnnualReturn2012	16.14%
2013	rr_AnnualReturn2013	18.19%
Year to Date Return, Label	rr_YearToDateReturnLabel	Year-to-Date
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Mar. 31, 2014
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	5.81%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2010
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	17.52%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2009
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(8.84%)
DWS RREEF Global Infrastructure Fund | Class C
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases, as % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load), as % of redemption proceeds	rr_MaximumDeferredSalesChargeOverOther	1.00%
Redemption/exchange fee on shares owned less than 15 days, as % of redemption proceeds	rr_RedemptionFeeOverRedemption	2.00%
Account Maintenance Fee (annually, for fund account balances below $10,000 and subject to certain exceptions)	rr_MaximumAccountFee	20
Management fee	rr_ManagementFeesOverAssets	0.90%
Distribution/service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other expenses	rr_OtherExpensesOverAssets	0.29%
Total annual fund operating expenses	rr_ExpensesOverAssets	2.19%
1 Year	rr_ExpenseExampleYear01	322
3 Years	rr_ExpenseExampleYear03	685
5 Years	rr_ExpenseExampleYear05	1,175
10 Years	rr_ExpenseExampleYear10	2,524
1 Year	rr_ExpenseExampleNoRedemptionYear01	222
3 Years	rr_ExpenseExampleNoRedemptionYear03	685
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,175
10 Years	rr_ExpenseExampleNoRedemptionYear10	2,524
DWS RREEF Global Infrastructure Fund | INST Class
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases, as % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load), as % of redemption proceeds	rr_MaximumDeferredSalesChargeOverOther	none
Redemption/exchange fee on shares owned less than 15 days, as % of redemption proceeds	rr_RedemptionFeeOverRedemption	2.00%
Account Maintenance Fee (annually, for fund account balances below $10,000 and subject to certain exceptions)	rr_MaximumAccountFee	none
Management fee	rr_ManagementFeesOverAssets	0.90%
Distribution/service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	none
Other expenses	rr_OtherExpensesOverAssets	0.20%
Total annual fund operating expenses	rr_ExpensesOverAssets	1.10%
1 Year	rr_ExpenseExampleYear01	112
3 Years	rr_ExpenseExampleYear03	350
5 Years	rr_ExpenseExampleYear05	606
10 Years	rr_ExpenseExampleYear10	1,340
1 Year	rr_ExpenseExampleNoRedemptionYear01	112
3 Years	rr_ExpenseExampleNoRedemptionYear03	350
5 Years	rr_ExpenseExampleNoRedemptionYear05	606
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,340
DWS RREEF Global Infrastructure Fund | Class S
Risk/Return:	rr_RiskReturnAbstract
Maximum sales charge (load) imposed on purchases, as % of offering price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum deferred sales charge (load), as % of redemption proceeds	rr_MaximumDeferredSalesChargeOverOther	none
Redemption/exchange fee on shares owned less than 15 days, as % of redemption proceeds	rr_RedemptionFeeOverRedemption	2.00%
Account Maintenance Fee (annually, for fund account balances below $10,000 and subject to certain exceptions)	rr_MaximumAccountFee	20
Management fee	rr_ManagementFeesOverAssets	0.90%
Distribution/service (12b-1) fees	rr_DistributionAndService12b1FeesOverAssets	none
Other expenses	rr_OtherExpensesOverAssets	0.35%
Total annual fund operating expenses	rr_ExpensesOverAssets	1.25%
1 Year	rr_ExpenseExampleYear01	127
3 Years	rr_ExpenseExampleYear03	397
5 Years	rr_ExpenseExampleYear05	686
10 Years	rr_ExpenseExampleYear10	1,511
1 Year	rr_ExpenseExampleNoRedemptionYear01	127
3 Years	rr_ExpenseExampleNoRedemptionYear03	397
5 Years	rr_ExpenseExampleNoRedemptionYear05	686
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,511
DWS RREEF Global Infrastructure Fund | before tax | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	11.39%
5 Years	rr_AverageAnnualReturnYear05	16.58%
Since Inception	rr_AverageAnnualReturnSinceInception	7.53%
Class Inception	rr_AverageAnnualReturnInceptionDate	Jun. 24, 2008
DWS RREEF Global Infrastructure Fund | before tax | Class C
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	17.21%
5 Years	rr_AverageAnnualReturnYear05	17.10%
Since Inception	rr_AverageAnnualReturnSinceInception	7.85%
Class Inception	rr_AverageAnnualReturnInceptionDate	Jun. 24, 2008
DWS RREEF Global Infrastructure Fund | before tax | INST Class
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	18.52%
5 Years	rr_AverageAnnualReturnYear05	18.34%
Since Inception	rr_AverageAnnualReturnSinceInception	8.96%
Class Inception	rr_AverageAnnualReturnInceptionDate	Jun. 24, 2008
DWS RREEF Global Infrastructure Fund | before tax | Class S
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	18.28%
5 Years	rr_AverageAnnualReturnYear05	18.24%
Since Inception	rr_AverageAnnualReturnSinceInception	8.91%
Class Inception	rr_AverageAnnualReturnInceptionDate	Jun. 24, 2008
DWS RREEF Global Infrastructure Fund | After tax on distributions | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	10.07%
5 Years	rr_AverageAnnualReturnYear05	15.87%
Since Inception	rr_AverageAnnualReturnSinceInception	6.92%
DWS RREEF Global Infrastructure Fund | After tax on distributions and sale of fund shares | Class A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	7.62%
5 Years	rr_AverageAnnualReturnYear05	14.36%
Since Inception	rr_AverageAnnualReturnSinceInception	6.30%
DWS RREEF Global Infrastructure Fund | MSCI World Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	26.68%
5 Years	rr_AverageAnnualReturnYear05	15.02%
Since Inception	rr_AverageAnnualReturnSinceInception	5.38%
DWS RREEF Global Infrastructure Fund | Dow Jones Brookfield Global Infrastructure Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	15.89%
5 Years	rr_AverageAnnualReturnYear05	18.22%
Since Inception	rr_AverageAnnualReturnSinceInception	9.25%