Shareholder Report, Average Annual Return (Details)	12 Months Ended	60 Months Ended	120 Months Ended
Shareholder Report, Average Annual Return (Details)	Nov. 30, 2025	Nov. 30, 2025	Nov. 30, 2025
C000048851_1_BBIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	15.00%
C000048851_1_BBIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		15.28%
C000048851_1_BBIndexMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			14.63%
C000205022_1_BBIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	15.00%
C000205022_1_BBIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		15.28%
C000205022_1_BBIndexMember_LOCMember
Average Annual Return [Line Items]
Average Annual Return, Percent	14.45%
C000048855_1_BBIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	15.00%
C000048855_1_BBIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		15.28%
C000048855_1_BBIndexMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			14.63%
C000048856_1_BBIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	15.00%
C000048856_1_BBIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		15.28%
C000048856_1_BBIndexMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			14.63%
C000048854_1_BBIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	15.00%
C000048854_1_BBIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		15.28%
C000048854_1_BBIndexMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			14.63%
C000048852_1_BBIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	15.00%
C000048852_1_BBIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		15.28%
C000048852_1_BBIndexMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			14.63%
C000048851_NoLoadClassMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	6.95%
C000048851_NoLoadClassMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		9.00%
C000048851_NoLoadClassMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			9.22%
C000048851_0_AdditionalIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	4.61%
C000048851_0_AdditionalIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		7.65%
C000048851_0_AdditionalIndexMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.64%
C000205022_NoLoadClassMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	7.05%
C000205022_NoLoadClassMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		9.10%
C000205022_NoLoadClassMember_2024-12-01_2025-11-30Member
Average Annual Return [Line Items]
Average Annual Return, Percent	9.07%
C000205022_0_AdditionalIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	4.61%
C000205022_0_AdditionalIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		7.65%
C000205022_0_AdditionalIndexMember_LOCMember
Average Annual Return [Line Items]
Average Annual Return, Percent	7.71%
C000048855_ClassMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	2.61%
C000048855_ClassMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		7.65%
C000048855_ClassMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.26%
C000048855_NoLoadClassMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	6.33%
C000048855_NoLoadClassMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		8.41%
C000048855_NoLoadClassMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.64%
C000048855_0_AdditionalIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	4.61%
C000048855_0_AdditionalIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		7.65%
C000048855_0_AdditionalIndexMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.64%
C000048856_NoLoadClassMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	6.89%
C000048856_NoLoadClassMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		8.96%
C000048856_NoLoadClassMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			9.19%
C000048856_0_AdditionalIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	4.61%
C000048856_0_AdditionalIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		7.65%
C000048856_0_AdditionalIndexMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.64%
C000048854_ClassMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	4.83%
C000048854_ClassMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		7.87%
C000048854_ClassMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.25%
C000048854_NoLoadClassMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	5.83%
C000048854_NoLoadClassMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		7.87%
C000048854_NoLoadClassMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.25%
C000048854_0_AdditionalIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	4.61%
C000048854_0_AdditionalIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		7.65%
C000048854_0_AdditionalIndexMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.64%
C000048852_ClassMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	0.48%
C000048852_ClassMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		7.41%
C000048852_ClassMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.27%
C000048852_NoLoadClassMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	6.61%
C000048852_NoLoadClassMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		8.69%
C000048852_NoLoadClassMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.91%
C000048852_0_AdditionalIndexMember_1YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent	4.61%
C000048852_0_AdditionalIndexMember_5YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent		7.65%
C000048852_0_AdditionalIndexMember_10YRMember
Average Annual Return [Line Items]
Average Annual Return, Percent			8.64%