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 -Section 12b
 -Subsection 1

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 -Name Regulation 12B
 -Number 240
 -Section 12b
 -Subsection 1

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3/1/2011 - 3/1/2011
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{dei_LegalEntityAxis} : S000007210 Member
{rr_ProspectusShareClassAxis} : C000019768 Member
3/1/2011 - 3/1/2011
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{dei_LegalEntityAxis} : S000006991 Member
{rr_ProspectusShareClassAxis} : C000019050 Member
3/1/2011 - 3/1/2011
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{rr_ProspectusShareClassAxis} : C000019051 Member
3/1/2011 - 3/1/2011
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{rr_ProspectusShareClassAxis} : C000019174 Member
3/1/2011 - 3/1/2011
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{rr_ProspectusShareClassAxis} : C000038779 Member
3/1/2011 - 3/1/2011
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{rr_ProspectusShareClassAxis} : C000019184 Member
3/1/2011 - 3/1/2011
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3/1/2011 - 3/1/2011
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{dei_LegalEntityAxis} : S000007212 Member
{rr_ProspectusShareClassAxis} : C000038802 Member
3/1/2011 - 3/1/2011
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{dei_LegalEntityAxis} : S000007075 Member
{rr_ProspectusShareClassAxis} : C000019317 Member
3/1/2011 - 3/1/2011
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{dei_LegalEntityAxis} : S000007075 Member
{rr_ProspectusShareClassAxis} : C000019318 Member
3/1/2011 - 3/1/2011
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{rr_ProspectusShareClassAxis} : C000038777 Member
3/1/2011 - 3/1/2011
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{dei_LegalEntityAxis} : S000007014 Member
{rr_ProspectusShareClassAxis} : C000052890 Member
3/1/2011 - 3/1/2011
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{rr_ProspectusShareClassAxis} : C000052891 Member
3/1/2011 - 3/1/2011
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