v3.25.2
Shareholder Report, Holdings (Details)
Dec. 31, 2024
C000012146 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000012146 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000012146 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000012146 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000012146 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 18.90%
C000012146 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000012146 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000012146 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 22.50%
C000012146 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000012146 | SectorU.S. Government Securities  
Holdings [Line Items]  
Percent of Net Asset Value 11.90%
C000012146 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000012146 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000012146 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000012147 | 1 to 7 Days  
Holdings [Line Items]  
Percent of Net Asset Value 67.50%
C000012147 | 8 to 30 Days  
Holdings [Line Items]  
Percent of Net Asset Value 14.80%
C000012147 | 31 to 60 Days  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000012147 | 61 to 90 Days  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000012147 | 91 to 180 Days  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000012147 | Over 180 Days  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000012147 | Other Line  
Holdings [Line Items]  
Percent of Net Asset Value (2.50%)
C000012149 | Communications  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000012149 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000012149 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000012149 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000012149 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 26.60%
C000012149 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000012149 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000012149 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000012149 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000012149 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000012149 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000012149 | Asset Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 22.70%
C000012149 | Other Assets and Liabilities, Net  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000012150 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000012150 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000012150 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000012150 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000012150 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000012150 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 24.20%
C000012150 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 21.50%
C000012150 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 20.10%
C000012150 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000012150 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000012150 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000012150 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000012151 | Other Assets and Liabilities, Net  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000012151 | Asset-Backed/Commercial Mortgage-Backed Securities  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000012151 | Corporate Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 26.00%
C000012151 | Sovereign Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000012151 | Taxable Municipal Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000012151 | U.S. Government and Agency Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 67.10%
C000012153 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 5.70%
C000012153 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 11.70%
C000012153 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000012153 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000012153 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000012153 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 27.30%
C000012153 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000012153 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 26.80%
C000012153 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000012153 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000012154 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000012154 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
C000012154 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000012154 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000012154 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 19.50%
C000012154 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000012154 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 10.50%
C000012154 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 21.10%
C000012154 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000012154 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000012154 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000012154 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000012155 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000012155 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000012155 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 10.20%
C000012155 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 9.30%
C000012155 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 20.60%
C000012155 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.70%
C000012155 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 11.50%
C000012155 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 11.80%
C000012155 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000012155 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000012155 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
C000012155 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000012157 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000012157 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 16.10%
C000012157 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000012157 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
C000012157 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000012157 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 45.50%
C000012157 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000012157 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000012158 | Communications  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000012158 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 15.60%
C000012158 | Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000012158 | Energy  
Holdings [Line Items]  
Percent of Net Asset Value 10.80%
C000012158 | Financials  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000012158 | Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000012158 | Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 8.60%
C000012158 | Materials  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000012158 | Real Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000012158 | Technology  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000012158 | Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000012158 | Asset Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000012158 | Other Assets and Liabilities, Net  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000012159 | Asia  
Holdings [Line Items]  
Percent of Net Asset Value 31.20%
C000012159 | Europe  
Holdings [Line Items]  
Percent of Net Asset Value 47.20%
C000012159 | North America  
Holdings [Line Items]  
Percent of Net Asset Value 14.60%
C000012159 | Oceania  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000012159 | South America  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000012159 | Country Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%