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Commitments and Contingencies Commitements and Contingencies (Narrative) (Details) $ / shares in Units, $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2019 USD ($) $ / shares shares
VISA Class B Conversion Ratio | 1.6298
Common Class B [Member] | VISA, Inc. (VISA) [Member] |
Investment Owned, Balance, Shares | shares | 86,605
Common Class A [Member] | VISA, Inc. (VISA) [Member] |
Share Price | $ / shares | $ 173.55
Investment Owned, at Fair Value | $ | $ 24.5

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