v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
C000000155 [Member] | BAE Systems PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [1]
C000000155 [Member] | Alphabet Inc Cl C [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40% [1]
C000000155 [Member] | Visa Inc Cl A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80% [1]
C000000155 [Member] | Apple Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.60% [1]
C000000155 [Member] | Taiwan Semiconductor Manufacturing Co Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40% [1]
C000000155 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10% [1]
C000000155 [Member] | ASML Holding NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [1]
C000000155 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70% [1]
C000000155 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00% [1]
C000000155 [Member] | NVIDIA Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10% [1]
C000000155 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000000155 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000000155 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000000155 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000000155 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40%
C000000155 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000000155 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
C000000155 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.10%
C000000155 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000000155 [Member] | Investment Companies [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000000155 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000130308 [Member] | BAE Systems PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [2]
C000130308 [Member] | Alphabet Inc Cl C [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40% [2]
C000130308 [Member] | Visa Inc Cl A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80% [2]
C000130308 [Member] | Apple Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.60% [2]
C000130308 [Member] | Taiwan Semiconductor Manufacturing Co Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40% [2]
C000130308 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10% [2]
C000130308 [Member] | ASML Holding NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [2]
C000130308 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70% [2]
C000130308 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00% [2]
C000130308 [Member] | NVIDIA Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10% [2]
C000130308 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000130308 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000130308 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000130308 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000130308 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40%
C000130308 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000130308 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
C000130308 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.10%
C000130308 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000130308 [Member] | Investment Companies [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000130308 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000000158 [Member] | BAE Systems PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [3]
C000000158 [Member] | Alphabet Inc Cl C [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40% [3]
C000000158 [Member] | Visa Inc Cl A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80% [3]
C000000158 [Member] | Apple Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.60% [3]
C000000158 [Member] | Taiwan Semiconductor Manufacturing Co Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40% [3]
C000000158 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10% [3]
C000000158 [Member] | ASML Holding NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [3]
C000000158 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70% [3]
C000000158 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00% [3]
C000000158 [Member] | NVIDIA Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10% [3]
C000000158 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000000158 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000000158 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000000158 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000000158 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40%
C000000158 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000000158 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
C000000158 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.10%
C000000158 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000000158 [Member] | Investment Companies [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000000158 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
C000000157 [Member] | BAE Systems PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [4]
C000000157 [Member] | Alphabet Inc Cl C [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40% [4]
C000000157 [Member] | Visa Inc Cl A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80% [4]
C000000157 [Member] | Apple Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.60% [4]
C000000157 [Member] | Taiwan Semiconductor Manufacturing Co Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.40% [4]
C000000157 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.10% [4]
C000000157 [Member] | ASML Holding NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [4]
C000000157 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70% [4]
C000000157 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.00% [4]
C000000157 [Member] | NVIDIA Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10% [4]
C000000157 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000000157 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000000157 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000000157 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.00%
C000000157 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 12.40%
C000000157 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00%
C000000157 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.70%
C000000157 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 33.10%
C000000157 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000000157 [Member] | Investment Companies [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000000157 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.10%
[1] Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
[2] Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
[3] Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.
[4] Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.