v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
C000027914 | Berkshire Hathaway, Inc. - ABFR_084670702  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000027914 | JPMorgan Chase & Co. - ABFR_46625H100  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000027914 | RTX Corp. - ABFR_75513E101  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000027914 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000027914 | Johnson & Johnson - ABFR_478160104  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000027914 | Philip Morris International, Inc. - ABFR_718172109  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000027914 | Cisco Systems, Inc. - ABFR_17275R102  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000027914 | Texas Instruments, Inc. - ABFR_882508104  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000027914 | UnitedHealth Group, Inc. - ABFR_91324P102  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000027914 | Chevron Corp. - ABFR_166764100  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000027914 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000027914 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 16.50%
C000027914 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000027914 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000027914 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000027914 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000027914 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000027914 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000027914 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000027914 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000027914 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000027914 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000027911 | Berkshire Hathaway, Inc. - ABFR_084670702  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000027911 | JPMorgan Chase & Co. - ABFR_46625H100  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000027911 | RTX Corp. - ABFR_75513E101  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000027911 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000027911 | Johnson & Johnson - ABFR_478160104  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000027911 | Philip Morris International, Inc. - ABFR_718172109  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000027911 | Cisco Systems, Inc. - ABFR_17275R102  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000027911 | Texas Instruments, Inc. - ABFR_882508104  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000027911 | UnitedHealth Group, Inc. - ABFR_91324P102  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000027911 | Chevron Corp. - ABFR_166764100  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000027911 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000027911 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 16.50%
C000027911 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000027911 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000027911 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000027911 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000027911 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000027911 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000027911 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000027911 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000027911 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000027911 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000027913 | Berkshire Hathaway, Inc. - ABFR_084670702  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000027913 | JPMorgan Chase & Co. - ABFR_46625H100  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000027913 | RTX Corp. - ABFR_75513E101  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000027913 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000027913 | Johnson & Johnson - ABFR_478160104  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000027913 | Philip Morris International, Inc. - ABFR_718172109  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000027913 | Cisco Systems, Inc. - ABFR_17275R102  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000027913 | Texas Instruments, Inc. - ABFR_882508104  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000027913 | UnitedHealth Group, Inc. - ABFR_91324P102  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000027913 | Chevron Corp. - ABFR_166764100  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000027913 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000027913 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 16.50%
C000027913 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000027913 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000027913 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000027913 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000027913 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000027913 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000027913 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000027913 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000027913 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000027913 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000027917 | Berkshire Hathaway, Inc. - ABFR_084670702  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000027917 | JPMorgan Chase & Co. - ABFR_46625H100  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000027917 | RTX Corp. - ABFR_75513E101  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000027917 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000027917 | Johnson & Johnson - ABFR_478160104  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000027917 | Philip Morris International, Inc. - ABFR_718172109  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000027917 | Cisco Systems, Inc. - ABFR_17275R102  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000027917 | Texas Instruments, Inc. - ABFR_882508104  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000027917 | UnitedHealth Group, Inc. - ABFR_91324P102  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000027917 | Chevron Corp. - ABFR_166764100  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000027917 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000027917 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 16.50%
C000027917 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000027917 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000027917 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000027917 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000027917 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000027917 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000027917 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000027917 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000027917 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000027917 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000132087 | Berkshire Hathaway, Inc. - ABFR_084670702  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000132087 | JPMorgan Chase & Co. - ABFR_46625H100  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000132087 | RTX Corp. - ABFR_75513E101  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000132087 | Alphabet, Inc. - ABFR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000132087 | Johnson & Johnson - ABFR_478160104  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000132087 | Philip Morris International, Inc. - ABFR_718172109  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000132087 | Cisco Systems, Inc. - ABFR_17275R102  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000132087 | Texas Instruments, Inc. - ABFR_882508104  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000132087 | UnitedHealth Group, Inc. - ABFR_91324P102  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000132087 | Chevron Corp. - ABFR_166764100  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000132087 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 17.00%
C000132087 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 16.50%
C000132087 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.90%
C000132087 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 12.80%
C000132087 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000132087 | SectorEnergy  
Holdings [Line Items]  
Percent of Net Asset Value 8.10%
C000132087 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000132087 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000132087 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000132087 | SectorReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000132087 | SectorUtilities  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000132087 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%