v3.26.1
Shareholder Report, Holdings (Details) - C000004917 [Member]
Jun. 30, 2026
Walmart Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50% [1]
Novartis AG ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.00% [1]
AstraZeneca PLC [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60% [1]
Visa Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.10% [1]
Johnson And Johnson [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 5.30% [1]
American Express Co [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80% [1]
JPMorgan Chase And Co [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.90% [1]
General Dynamics Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40% [1]
Berkshire Hathaway Inc Class B [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40% [1]
Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.00% [1]
Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 24.00% [2]
Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40% [2]
Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.10% [2]
Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 18.80% [2]
Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.10% [2]
Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.50% [2]
Liabilities in Excess of Other Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.50%) [2]
Short-Term Investments [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [2]
[1]
Excludes short-term securities.
[2]
For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.