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Fair Value Measurements (Narrative) (Details) - Recurring [Member]	12 Months Ended
	Dec. 31, 2025 shares
Visa Inc [Member]
Fair Value of Financial Instruments, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Number of shares of Visa Class B common stock	192,163
Minimum [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input, Conversion Price [Member]
Fair Value of Financial Instruments, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Values Utilized	1.55
Minimum [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input Visa Class B Common Stock [Member]
Fair Value of Financial Instruments, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Time until resolution	21 months
Maximum [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input, Conversion Price [Member]
Fair Value of Financial Instruments, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Values Utilized	1.54
Maximum [Member] | Fair Value, Inputs, Level 3 [Member] | Measurement Input Visa Class B Common Stock [Member]
Fair Value of Financial Instruments, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Time until resolution	33 months
Investment Securities [Member] | Minimum [Member]
Fair Value of Financial Instruments, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Targeted duration	2 years
Investment Securities [Member] | Maximum [Member]
Fair Value of Financial Instruments, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Targeted duration	5 years 6 months

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