Debt Securities (Schedule Of Gross Gains And Gross Losses On Available For Sale Securities) (Details) $ in Millions |
12 Months Ended |
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Dec. 31, 2019
USD ($)
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| Investments, Debt and Equity Securities [Abstract] | |
| Gross realized gains | $ 16 |
| Gross realized losses | (43) |
| Other than Temporary Impairment | (1) |
| Available-for-sale Securities, Gross Realized Gain (Loss) | $ (28) |
| X | ||||||||||
- Definition This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. No definition available.
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| X | ||||||||||
- Definition This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. No definition available.
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| X | ||||||||||
- Definition This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting. No definition available.
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