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[rr_BarChartAndPerformanceTableHeading]
Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns Annual Total Returns                                                                                                                                                                                                                                      
[rr_BarChartClosingTextBlock]

During the periods shown in the bar chart, the highest return for a calendar quarter was 14.65% (quarter ended September 30, 2009 ), and the lowest return for a quarter was -22.38% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 14.62% (quarter ended September 30, 2009 ), and the lowest return for a quarter was -22.40% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 7.44% (quarter ended September 30, 2009 ), and the lowest return for a quarter was -5.47% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 12.21% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -12.54% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 14.84% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -16.48% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 17.27% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -19.72% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 17.15% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -19.65% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 10.55% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -10.63% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 13.49% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -14.51% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 16.23% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -18.45% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 17.13% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -19.62% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 17.23% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -19.71% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 11.30% (quarter ended March 31, 2012 ), and the lowest return for a quarter was -14.79% (quarter ended September 30, 2011 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 7.61% (quarter ended March 31, 2013 ), and the lowest return for a quarter was -1.51% (quarter ended September 30, 2014 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 14.62% (quarter ended September 30, 2009 ), and the lowest return for a quarter was -22.40% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 7.44% (quarter ended September 30, 2009 ), and the lowest return for a quarter was -5.47% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 12.21% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -12.54% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 14.84% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -16.48% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 17.27% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -19.72% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 17.15% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -19.65% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 10.55% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -10.63% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 13.49% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -14.51% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 16.23% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -18.45% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 17.13% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -19.62% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 17.23% (quarter ended June 30, 2009 ), and the lowest return for a quarter was -19.71% (quarter ended December 31, 2008 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 11.30% (quarter ended March 31, 2012 ), and the lowest return for a quarter was -14.79% (quarter ended September 30, 2011 ).

During the periods shown in the bar chart, the highest return for a calendar quarter was 7.61% (quarter ended March 31, 2013 ), and the lowest return for a quarter was -1.51% (quarter ended September 30, 2014 ).

                                                                                                                                                                                                                                     
[rr_BarChartHeading]
Annual Total Returns - Vanguard PRIMECAP Fund Admiral Shares Annual Total Returns - Vanguard PRIMECAP Fund Investor Shares Annual Total Returns - Vanguard Target Retirement Income Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2015 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2025 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2035 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2045 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2010 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2020 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2030 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2040 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2050 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2055 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2060 Fund Investor Shares Annual Total Returns - Vanguard PRIMECAP Fund Investor Shares Annual Total Returns - Vanguard Target Retirement Income Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2015 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2025 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2035 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2045 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2010 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2020 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2030 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2040 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2050 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2055 Fund Investor Shares Annual Total Returns - Vanguard Target Retirement 2060 Fund Investor Shares                                                                                                                                                                                                                                      
[rr_BarChartNarrativeTextBlock]

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Admiral Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Admiral Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Investor Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Fund compare with those of relevant market indexes and a composite bond/stock index, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.

                                                                                                                                                                                                                                     
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Example

                                                                                                                                                                                                                                     
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The following example is intended to help you compare the cost of investing in the Fund's Admiral Shares with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Shares provide a return of 5% a year and that total annual fund operating expenses remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund's Investor Shares with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Shares provide a return of 5% a year and that total annual fund operating expenses remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following examples are intended to help you compare the cost of investing in the Fund's Investor Shares or Admiral Shares with the cost of investing in other mutual funds. They illustrate the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. These examples assume that the Shares provide a return of 5% a year and that total annual fund operating expenses remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The following example is intended to help you compare the cost of investing in the Fund (based on the fees and expenses of the acquired funds) with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund's shares. This example assumes that the Fund provides a return of 5% a year and that total annual fund operating expenses of the Fund and its underlying funds remain as stated in the preceding table. The results apply whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

                                                                                                                                                                                                                                     
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[rr_ExpenseHeading]
Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses Fees and Expenses                                                                                                                                                                                                                                      
[rr_ExpenseNarrativeTextBlock]

The following table describes the fees and expenses you may pay if you buy and hold Admiral Shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold Investor Shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold Investor Shares or Admiral Shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

                                                                                                                                                                                                                                     
[rr_HighestQuarterlyReturnLabel]
(quarter ended September 30, 2009 ) (quarter ended September 30, 2009 ) (quarter ended September 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended March 31, 2012 ) (quarter ended March 31, 2013 ) (quarter ended September 30, 2009 ) (quarter ended September 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended June 30, 2009 ) (quarter ended March 31, 2012 ) (quarter ended March 31, 2013 )                                                                                                                                                                                                                                      
[rr_IndexNoDeductionForFeesExpensesTaxes]
(reflects no deduction for fees or expenses) (reflects no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees or expenses) (reflects no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflects no deduction for fees or expenses) (reflects no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflect no deduction for fees or expenses) (reflects no deduction for fees, expenses, or taxes) (reflects no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes) (reflect no deduction for fees, expenses, or taxes)                                                                              
[rr_LowestQuarterlyReturnLabel]
(quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended September 30, 2011 ) (quarter ended September 30, 2014 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended December 31, 2008 ) (quarter ended September 30, 2011 ) (quarter ended September 30, 2014 )                                                                                                                                                                                                                                      
[rr_ObjectiveHeading]
Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective Investment Objective                                                                                                                                                                                                                                      
[rr_ObjectivePrimaryTextBlock]

The Fund seeks to provide long-term capital appreciation.

The Fund seeks to provide long-term capital appreciation.

The Fund seeks to provide current income and some capital appreciation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide long-term capital appreciation.

The Fund seeks to provide current income and some capital appreciation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

The Fund seeks to provide capital appreciation and current income consistent with its current asset allocation.

                                                                                                                                                                                                                                     
[rr_OperatingExpensesCaption]
Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment) Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)                                                                                                                                                                                                                                      
[rr_PerformanceAdditionalMarketIndex]
   

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

 

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

, which have investment characteristics similar to those of the Fund.

                                                                                                                                                                                                                                     
[rr_PerformanceAvailabilityPhone]

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

800-662-7447

                                                                                                                                                                                                                                     
[rr_PerformanceAvailabilityWebSiteAddress]

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

vanguard.com/performance

                                                                                                                                                                                                                                     
[rr_PerformanceInformationIllustratesVariabilityOfReturns]

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

The following bar chart and table are intended to help you understand the risks of investing in the Fund.

                                                                                                                                                                                                                                     
[rr_PerformancePastDoesNotIndicateFuture]

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future.

                                                                                                                                                                                                                                     
[rr_PerformanceTableClosingTextBlock]
                           

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are shown only for the Investor Shares and may differ for each share class. After-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Actual after-tax returns depend on your tax situation and may differ from those shown in the preceding table. When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption. State and local income taxes are not reflected in the calculations. Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan. Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares may be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

                                                                                                                                                                                                                                     
[rr_PerformanceTableExplanationAfterTaxHigher]
                           

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

Also, figures captioned Return After Taxes on Distributions and Sale of Fund Shares will be higher than other figures for the same period if a capital loss occurs upon redemption and results in an assumed tax deduction for the shareholder.

                                                                                                                                                                                                                                     
[rr_PerformanceTableHeading]
Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014 Average Annual Total Returns for Periods Ended December 31, 2014                                                                                                                                                                                                                                      
[rr_PerformanceTableNotRelevantToTaxDeferred]
                           

After-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

Please note that after-tax returns are not relevant for a shareholder who holds fund shares in a tax-deferred account, such as an individual retirement account or a 401(k) plan.

                                                                                                                                                                                                                                     
[rr_PerformanceTableOneClassOfAfterTaxShown]
                           

Please note that after-tax returns are shown only for the Investor Shares and may differ for each share class.

                                                                                                                                                                                                                                                             
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[rr_PerformanceTableUsesHighestFederalRate]
                           

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

When after-tax returns are calculated, it is assumed that the shareholder was in the highest individual federal marginal income tax bracket at the time of each distribution of income or capital gains or upon redemption.

                                                                                                                                                                                                                                     
[rr_PortfolioTurnoverHeading]

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

Portfolio Turnover

                                                                                                                                                                                                                                     
[rr_PortfolioTurnoverRate]
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[rr_PortfolioTurnoverTextBlock]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or 'turns over' its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 11% of the average value of its portfolio.

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or 'turns over' its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 11% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 6% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 10% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 6% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 13% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 6% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 11% of the average value of its portfolio.

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or 'turns over' its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense examples, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 11% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 6% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 10% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 6% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 13% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 6% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.

The Fund may pay transaction costs, such as purchase fees, 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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 11% of the average value of its portfolio.

                                                                                                                                                                                                                                     
[rr_ProspectusDate]
Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015 Jan. 27, 2015                                                                                                                                                                                                                                      
[rr_RiskHeading]
Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks Principal Risks                                                                                                                                                                                                                                      
[rr_RiskLoseMoney]

An investment in the Fund could lose money over short or even long periods.

An investment in the Fund could lose money over short or even long periods.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

An investment in the Fund could lose money over short or even long periods.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money.

                                                                                                                                                                                                                                     
[rr_RiskNarrativeTextBlock]

An investment in the Fund could lose money over short or even long periods. You should expect the Fund's share price and total return to fluctuate within a wide range, like the fluctuations of the overall stock market. The Fund is subject to the following risks, which could affect the Fund's performance:

Stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices.

Asset concentration risk, which is the chance that the Fund's performance may be hurt disproportionately by the poor performance of relatively few stocks. The Fund tends to invest a high percentage of its assets in its ten largest holdings.

Investment style risk, which is the chance that returns from large- and mid-capitalization growth stocks will trail returns from the overall stock market. Large- and mid-cap stocks each tend to go through cycles of doing better-or worse-than other segments of the stock market or the stock market in general. These periods have, in the past, lasted for as long as several years. Historically, mid-cap stocks have been more volatile in price than large-cap stocks.

Manager risk, which is the chance that poor security selection will cause the Fund to underperform relevant benchmarks or other funds with a similar investment objective. In addition, significant investments in the health care and information technology sectors subject the Fund to proportionately higher exposure to the risks of these sectors.

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.

An investment in the Fund could lose money over short or even long periods. You should expect the Fund's share price and total return to fluctuate within a wide range, like the fluctuations of the overall stock market. The Fund is subject to the following risks, which could affect the Fund's performance:

Stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices.

Asset concentration risk, which is the chance that the Fund's performance may be hurt disproportionately by the poor performance of relatively few stocks. The Fund tends to invest a high percentage of its assets in its ten largest holdings.

Investment style risk, which is the chance that returns from large- and mid-capitalization growth stocks will trail returns from the overall stock market. Large- and mid-cap stocks each tend to go through cycles of doing better-or worse-than other segments of the stock market or the stock market in general. These periods have, in the past, lasted for as long as several years. Historically, mid-cap stocks have been more volatile in price than large-cap stocks.

Manager risk, which is the chance that poor security selection will cause the Fund to underperform relevant benchmarks or other funds with a similar investment objective. In addition, significant investments in the health care and information technology sectors subject the Fund to proportionately higher exposure to the risks of these sectors.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses. There is no guarantee that the Fund will provide adequate income through retirement. Because bonds and short-term investments usually are less volatile than stocks and because the Fund invests most of its assets in bonds and short-term investments, the Fund's overall level of risk should be low to moderate.

With approximately 70% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

With approximately 30% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 51% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 49% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 68% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 32% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 83% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 17% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests most of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 90% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 10% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because fixed income securities such as bonds usually are less volatile than stocks and because the Fund currently invests a significant portion of its assets in fixed income securities, the Fund's overall level of risk should be moderate.

With approximately 63% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

With approximately 37% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 61% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 39% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 76% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 24% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 90% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 10% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests most of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 90% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in a particular country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 10% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests most of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 90% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in a particular country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 10% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests most of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 90% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in a particular country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 10% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

An investment in the Fund could lose money over short or even long periods. You should expect the Fund's share price and total return to fluctuate within a wide range, like the fluctuations of the overall stock market. The Fund is subject to the following risks, which could affect the Fund's performance:

Stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices.

Asset concentration risk, which is the chance that the Fund's performance may be hurt disproportionately by the poor performance of relatively few stocks. The Fund tends to invest a high percentage of its assets in its ten largest holdings.

Investment style risk, which is the chance that returns from large- and mid-capitalization growth stocks will trail returns from the overall stock market. Large- and mid-cap stocks each tend to go through cycles of doing better-or worse-than other segments of the stock market or the stock market in general. These periods have, in the past, lasted for as long as several years. Historically, mid-cap stocks have been more volatile in price than large-cap stocks.

Manager risk, which is the chance that poor security selection will cause the Fund to underperform relevant benchmarks or other funds with a similar investment objective. In addition, significant investments in the health care and information technology sectors subject the Fund to proportionately higher exposure to the risks of these sectors.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses. There is no guarantee that the Fund will provide adequate income through retirement. Because bonds and short-term investments usually are less volatile than stocks and because the Fund invests most of its assets in bonds and short-term investments, the Fund's overall level of risk should be low to moderate.

With approximately 70% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

With approximately 30% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 51% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 49% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 68% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 32% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 83% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 17% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests most of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 90% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 10% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because fixed income securities such as bonds usually are less volatile than stocks and because the Fund currently invests a significant portion of its assets in fixed income securities, the Fund's overall level of risk should be moderate.

With approximately 63% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

With approximately 37% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 61% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 39% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 76% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 24% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests more of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 90% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in any one country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 10% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests most of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 90% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in a particular country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 10% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests most of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 90% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in a particular country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 10% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

The Fund is subject to the risks associated with the stock and bond markets, any of which could cause an investor to lose money. An investment in the Fund is not guaranteed. An investor may experience losses, including losses near, at, or after the target year. There is no guarantee that the Fund will provide adequate income at or after the target year. Because stocks usually are more volatile than bonds and because the Fund currently invests most of its assets in stocks, the Fund's overall level of risk should be higher than that of funds that invest the majority of their assets in bonds; however, the level of risk should be lower than that of funds investing entirely in stocks.

With approximately 90% of its assets allocated to stocks, the Fund is proportionately subject to stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund is also subject to the following risks associated with investments in foreign stocks: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of companies in a particular country or region; and currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Country/regional risk and currency risk are especially high in emerging markets.

With approximately 10% of its assets allocated to bonds, the Fund is proportionately subject to the following bond risks: interest rate risk, which is the chance that bond prices will decline because of rising interest rates; income risk, which is the chance that an underlying fund's income will decline because of falling interest rates; credit risk, which is the chance that a bond issuer will fail to pay interest and principal in a timely manner or that negative perceptions of the issuer's ability to make such payments will cause the price of that bond to decline, thus reducing the underlying fund's return; and call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupons or interest rates before their maturity dates. An underlying fund would then lose any price appreciation above the bond's call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the underlying fund's income. For mortgage-backed securities, this risk is known as prepayment risk. The Fund is also subject to the following risks associated with investments in currency-hedged foreign bonds: country/regional risk, which is the chance that world events-such as political upheaval, financial troubles, or natural disasters-will adversely affect the value of securities issued by foreign governments, government agencies, or companies; and currency hedging risk, which is the chance that the currency hedging transactions entered into by the underlying international bond fund may not perfectly offset the fund's foreign currency exposure.

The Fund is also subject to asset allocation risk, which is the chance that the selection of underlying funds, and the allocation of assets to them, will cause the Fund to underperform other funds with a similar investment objective.

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.

                                                                                                                                                                                                                                     
[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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

                                                                                                                                                                                                                                     
[rr_RiskReturnHeading]
Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return Risk/Return                                                                                                                                                                                                                                      
[rr_ShareholderFeesCaption]
Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment) Shareholder Fees (Fees paid directly from your investment)                                                                                                                                                                                                                                      
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Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies Principal Investment Strategies                                                                                                                                                                                                                                      
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The Fund invests in stocks considered to have above-average earnings growth potential that is not reflected in their current market prices. The Fund's portfolio consists predominantly of large- and mid-capitalization stocks.

The Fund invests in stocks considered to have above-average earnings growth potential that is not reflected in their current market prices. The Fund's portfolio consists predominantly of large- and mid-capitalization stocks.

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors currently in retirement. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Bond Market II Index Fund 39.3%

Vanguard Total Stock Market Index Fund 21.1%

Vanguard Short-Term Inflation-Protected Securities Index Fund 16.8%

Vanguard Total International Bond Index Fund 14.0%

Vanguard Total International Stock Index Fund 8.8%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; inflation-protected public obligations issued by the U.S. Treasury; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2015 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2015, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 36.3%

Vanguard Total Bond Market II Index Fund 32.0%

Vanguard Total International Stock Index Fund 14.7%

Vanguard Total International Bond Index Fund 9.8%

Vanguard Short-Term Inflation-Protected Securities Index Fund 7.2%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; inflation-protected public obligations issued by the U.S. Treasury; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2025 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2025, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 48.0%

Vanguard Total Bond Market II Index Fund 25.6%

Vanguard Total International Stock Index Fund 20.0%

Vanguard Total International Bond Index Fund 6.4%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2035 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2035, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 58.5%

Vanguard Total International Stock Index Fund 24.7%

Vanguard Total Bond Market II Index Fund 13.4%

Vanguard Total International Bond Index Fund 3.4%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2045 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2045, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 63.2%

Vanguard Total International Stock Index Fund 26.8%

Vanguard Total Bond Market II Index Fund 8.0%

Vanguard Total International Bond Index Fund 2.0%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2010 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2010, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Bond Market II Index Fund 36.5%

Vanguard Total Stock Market Index Fund 26.5%

Vanguard Short-Term Inflation-Protected Securities Index Fund 13.6%

Vanguard Total International Bond Index Fund 12.6%

Vanguard Total International Stock Index Fund 10.8%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; inflation-protected public obligations issued by the U.S. Treasury; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2020 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2020, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 43.0%

Vanguard Total Bond Market II Index Fund 31.4%

Vanguard Total International Stock Index Fund 17.7%

Vanguard Total International Bond Index Fund 7.9%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2030 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2030, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 53.3%

Vanguard Total International Stock Index Fund 22.3%

Vanguard Total Bond Market II Index Fund 19.5%

Vanguard Total International Bond Index Fund 4.9%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2040 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2040, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 63.2%

Vanguard Total International Stock Index Fund 26.8%

Vanguard Total Bond Market II Index Fund 8.0%

Vanguard Total International Bond Index Fund 2.0%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2050 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2050, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 63.0%

Vanguard Total International Stock Index Fund 26.9%

Vanguard Total Bond Market II Index Fund 8.1%

Vanguard Total International Bond Index Fund 2.0%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2055 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2055, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 63.0%

Vanguard Total International Stock Index Fund 27.0%

Vanguard Total Bond Market II Index Fund 8.0%

Vanguard Total International Bond Index Fund 2.0%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2060 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2060, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 63.0%

Vanguard Total International Stock Index Fund 27.0%

Vanguard Total Bond Market II Index Fund 8.0%

Vanguard Total International Bond Index Fund 2.0%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in stocks considered to have above-average earnings growth potential that is not reflected in their current market prices. The Fund's portfolio consists predominantly of large- and mid-capitalization stocks.

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors currently in retirement. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Bond Market II Index Fund 39.3%

Vanguard Total Stock Market Index Fund 21.1%

Vanguard Short-Term Inflation-Protected Securities Index Fund 16.8%

Vanguard Total International Bond Index Fund 14.0%

Vanguard Total International Stock Index Fund 8.8%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; inflation-protected public obligations issued by the U.S. Treasury; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2015 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2015, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 36.3%

Vanguard Total Bond Market II Index Fund 32.0%

Vanguard Total International Stock Index Fund 14.7%

Vanguard Total International Bond Index Fund 9.8%

Vanguard Short-Term Inflation-Protected Securities Index Fund 7.2%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; inflation-protected public obligations issued by the U.S. Treasury; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2025 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2025, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 48.0%

Vanguard Total Bond Market II Index Fund 25.6%

Vanguard Total International Stock Index Fund 20.0%

Vanguard Total International Bond Index Fund 6.4%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2035 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2035, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 58.5%

Vanguard Total International Stock Index Fund 24.7%

Vanguard Total Bond Market II Index Fund 13.4%

Vanguard Total International Bond Index Fund 3.4%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2045 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2045, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 63.2%

Vanguard Total International Stock Index Fund 26.8%

Vanguard Total Bond Market II Index Fund 8.0%

Vanguard Total International Bond Index Fund 2.0%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2010 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2010, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Bond Market II Index Fund 36.5%

Vanguard Total Stock Market Index Fund 26.5%

Vanguard Short-Term Inflation-Protected Securities Index Fund 13.6%

Vanguard Total International Bond Index Fund 12.6%

Vanguard Total International Stock Index Fund 10.8%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; inflation-protected public obligations issued by the U.S. Treasury; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2020 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2020, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 43.0%

Vanguard Total Bond Market II Index Fund 31.4%

Vanguard Total International Stock Index Fund 17.7%

Vanguard Total International Bond Index Fund 7.9%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2030 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2030, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 53.3%

Vanguard Total International Stock Index Fund 22.3%

Vanguard Total Bond Market II Index Fund 19.5%

Vanguard Total International Bond Index Fund 4.9%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2040 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2040, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 63.2%

Vanguard Total International Stock Index Fund 26.8%

Vanguard Total Bond Market II Index Fund 8.0%

Vanguard Total International Bond Index Fund 2.0%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2050 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2050, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 63.0%

Vanguard Total International Stock Index Fund 26.9%

Vanguard Total Bond Market II Index Fund 8.1%

Vanguard Total International Bond Index Fund 2.0%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2055 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2055, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 63.0%

Vanguard Total International Stock Index Fund 27.0%

Vanguard Total Bond Market II Index Fund 8.0%

Vanguard Total International Bond Index Fund 2.0%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

The Fund invests in other Vanguard mutual funds according to an asset allocation strategy designed for investors planning to retire and leave the workforce in or within a few years of 2060 (the target year). The Fund is designed for an investor who plans to withdraw the value of an account in the Fund over a period of many years after the target year. The Fund's asset allocation will become more conservative over time, meaning that the percentage of assets allocated to stocks will decrease while the percentage of assets allocated to bonds and other fixed income investments will increase. Within seven years after 2060, the Fund's asset allocation should become similar to that of the Target Retirement Income Fund. As of September 30, 2014, the Fund's asset allocation among the underlying funds was as follows:

Vanguard Total Stock Market Index Fund 63.0%

Vanguard Total International Stock Index Fund 27.0%

Vanguard Total Bond Market II Index Fund 8.0%

Vanguard Total International Bond Index Fund 2.0%

At any given time, the Fund's asset allocation may be affected by a variety of factors, such as whether the underlying funds are accepting additional investments.

The Fund's indirect stock holdings are a diversified mix of U.S. and foreign large-, mid-, and small-capitalization stocks.

The Fund's indirect bond holdings are a diversified mix of short-, intermediate-, and long-term U.S. government, U.S. agency, and investment-grade U.S. corporate bonds; mortgage-backed and asset-backed securities; and government, agency, corporate, and securitized investment-grade foreign bonds issued in currencies other than the U.S. dollar (but hedged by Vanguard to minimize foreign currency exposure).

                                                                                                                                                                                                                                     
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