v3.25.2
Shareholder Report, Holdings (Details)
Apr. 30, 2025
C000014125 [Member] | Net Other Assets and Liabilities country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000014125 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000014125 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000014125 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000014125 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000014125 [Member] | AUSTRIA  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000014125 [Member] | AUSTRALIA  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000014125 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000014125 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000014125 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000014125 [Member] | JERSEY  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000014125 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000014125 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000014125 [Member] | NEW ZEALAND  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000014125 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000014125 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000014125 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000014125 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 28.60%
C000014125 [Member] | Collateralized Loan Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000014125 [Member] | US Treasury Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000014125 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000014125 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000014125 [Member] | Foreign Governmental [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 62.90%
C000014125 [Member] | Corporate Bonds and Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000014125 [Member] | Investment Companies [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000014125 [Member] | Forward Foreign Currency Exchange Contracts [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000014125 [Member] | Swap Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000014125 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.00%)
C000014125 [Member] | U S Government Agencies Mortgage Backed [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000014126 [Member] | Net Other Assets and Liabilities country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000014126 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000014126 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000014126 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000014126 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000014126 [Member] | AUSTRIA  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000014126 [Member] | AUSTRALIA  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000014126 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000014126 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000014126 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000014126 [Member] | JERSEY  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000014126 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000014126 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000014126 [Member] | NEW ZEALAND  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000014126 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000014126 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000014126 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000014126 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 28.60%
C000014126 [Member] | Collateralized Loan Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000014126 [Member] | US Treasury Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000014126 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000014126 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000014126 [Member] | Foreign Governmental [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 62.90%
C000014126 [Member] | Corporate Bonds and Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000014126 [Member] | Investment Companies [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000014126 [Member] | Forward Foreign Currency Exchange Contracts [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000014126 [Member] | Swap Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000014126 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.00%)
C000014126 [Member] | U S Government Agencies Mortgage Backed [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000014127 [Member] | Net Other Assets and Liabilities country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000014127 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000014127 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000014127 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000014127 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000014127 [Member] | AUSTRIA  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000014127 [Member] | AUSTRALIA  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000014127 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000014127 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000014127 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000014127 [Member] | JERSEY  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000014127 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000014127 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000014127 [Member] | NEW ZEALAND  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000014127 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000014127 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000014127 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000014127 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 28.60%
C000014127 [Member] | Collateralized Loan Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000014127 [Member] | US Treasury Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000014127 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000014127 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000014127 [Member] | Foreign Governmental [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 62.90%
C000014127 [Member] | Corporate Bonds and Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000014127 [Member] | Investment Companies [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000014127 [Member] | Forward Foreign Currency Exchange Contracts [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000014127 [Member] | Swap Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000014127 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.00%)
C000014127 [Member] | U S Government Agencies Mortgage Backed [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000130466 [Member] | Net Other Assets and Liabilities country [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000130466 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000130466 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000130466 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000130466 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000130466 [Member] | AUSTRIA  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000130466 [Member] | AUSTRALIA  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000130466 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000130466 [Member] | CANADA  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000130466 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 6.30%
C000130466 [Member] | JERSEY  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000130466 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000130466 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000130466 [Member] | NEW ZEALAND  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000130466 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000130466 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000130466 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 10.60%
C000130466 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 28.60%
C000130466 [Member] | Collateralized Loan Obligations [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000130466 [Member] | US Treasury Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000130466 [Member] | Asset-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000130466 [Member] | Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30%
C000130466 [Member] | Foreign Governmental [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 62.90%
C000130466 [Member] | Corporate Bonds and Notes [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.30%
C000130466 [Member] | Investment Companies [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000130466 [Member] | Forward Foreign Currency Exchange Contracts [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00%
C000130466 [Member] | Swap Agreements [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000130466 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.00%)
C000130466 [Member] | U S Government Agencies Mortgage Backed [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000049945 [Member] | CME Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [1]
C000049945 [Member] | Sanofi SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70% [1]
C000049945 [Member] | BAE Systems PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [1]
C000049945 [Member] | Industria de Diseno Textil SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [1]
C000049945 [Member] | Medtronic PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [1]
C000049945 [Member] | AstraZeneca PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [1]
C000049945 [Member] | Cisco Systems Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [1]
C000049945 [Member] | Universal Music Group NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [1]
C000049945 [Member] | Dominion Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [1]
C000049945 [Member] | Molson Coors Beverage Co Cl B [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [1]
C000049945 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000049945 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000049945 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000049945 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000049945 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000049945 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000049945 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000049945 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000049945 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000049945 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000049945 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000049945 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000049945 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000049945 [Member] | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000049945 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000049945 [Member] | FINLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000049945 [Member] | HONG KONG  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000049945 [Member] | INDONESIA  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000049945 [Member] | IRELAND  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000049945 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000049946 [Member] | CME Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [2]
C000049946 [Member] | Sanofi SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70% [2]
C000049946 [Member] | BAE Systems PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [2]
C000049946 [Member] | Industria de Diseno Textil SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [2]
C000049946 [Member] | Medtronic PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [2]
C000049946 [Member] | AstraZeneca PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [2]
C000049946 [Member] | Cisco Systems Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [2]
C000049946 [Member] | Universal Music Group NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [2]
C000049946 [Member] | Dominion Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [2]
C000049946 [Member] | Molson Coors Beverage Co Cl B [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [2]
C000049946 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000049946 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000049946 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000049946 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000049946 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000049946 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000049946 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000049946 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000049946 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000049946 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000049946 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000049946 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000049946 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000049946 [Member] | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000049946 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000049946 [Member] | FINLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000049946 [Member] | HONG KONG  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000049946 [Member] | INDONESIA  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000049946 [Member] | IRELAND  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000049946 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000049947 [Member] | CME Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [3]
C000049947 [Member] | Sanofi SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70% [3]
C000049947 [Member] | BAE Systems PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [3]
C000049947 [Member] | Industria de Diseno Textil SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [3]
C000049947 [Member] | Medtronic PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [3]
C000049947 [Member] | AstraZeneca PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [3]
C000049947 [Member] | Cisco Systems Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [3]
C000049947 [Member] | Universal Music Group NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [3]
C000049947 [Member] | Dominion Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [3]
C000049947 [Member] | Molson Coors Beverage Co Cl B [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [3]
C000049947 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000049947 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000049947 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000049947 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000049947 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000049947 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000049947 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000049947 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000049947 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000049947 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000049947 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000049947 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000049947 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000049947 [Member] | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000049947 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000049947 [Member] | FINLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000049947 [Member] | HONG KONG  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000049947 [Member] | INDONESIA  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000049947 [Member] | IRELAND  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000049947 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
C000130468 [Member] | CME Group Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70% [4]
C000130468 [Member] | Sanofi SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.70% [4]
C000130468 [Member] | BAE Systems PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [4]
C000130468 [Member] | Industria de Diseno Textil SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [4]
C000130468 [Member] | Medtronic PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [4]
C000130468 [Member] | AstraZeneca PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [4]
C000130468 [Member] | Cisco Systems Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.30% [4]
C000130468 [Member] | Universal Music Group NV [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [4]
C000130468 [Member] | Dominion Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [4]
C000130468 [Member] | Molson Coors Beverage Co Cl B [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.20% [4]
C000130468 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000130468 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000130468 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000130468 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000130468 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000130468 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000130468 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000130468 [Member] | NETHERLANDS  
Holdings [Line Items]  
Percent of Net Asset Value 3.30%
C000130468 [Member] | SPAIN  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000130468 [Member] | SWITZERLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000130468 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 9.60%
C000130468 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 44.10%
C000130468 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000130468 [Member] | SWEDEN  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000130468 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000130468 [Member] | FINLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000130468 [Member] | HONG KONG  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000130468 [Member] | INDONESIA  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000130468 [Member] | IRELAND  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000130468 [Member] | Net Other Assets and Liabilities [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.90%
[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.