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Derivative Instruments (Schedule Of Offsetting Assets And Liabilities) (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
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Financial Assets |  |
Derivative Instruments, Gross amount of recognized assets | $ 5,469 | $ 7,938
Derivative Instruments, Gross amounts offset | (2,379) | (2,241)
Derivative Instruments, Net amount of assets | 3,090 | 5,697
Derivative Instruments, Cash collateral | (3,090) | (5,574)
Derivative Instruments, Non-cash collateral |  | (123)
Derivative Instruments, Net amount |  |
Embedded Derivative Instruments, Gross amount of recognized assets | 2,186 | 2,547
Embedded Derivative Instruments, Gross amounts offset |  |
Embedded Derivative Instruments, Net amount of assets | 2,186 | 2,547
Embedded Derivative Instruments, Cash collateral |  |
Embedded Derivative Instruments, Non-cash collateral |  |
Embedded Derivative Instruments, Net amount | 2,186 | 2,547
Securities Lending and Reverse Repurchase Agreements, Cash collateral received | 202 | 12
Excess Cash Collateral Pledged | 71 |
Total, Gross amount of recognized assets | 7,655 | 10,485
Total, Gross amounts offset | (2,379) | (2,241)
Total, Net amount of assets | 5,276 | 8,244
Total, Cash collateral | (3,090) | (5,574)
Total, Non-cash collateral |  | (123)
Total, Net amount | 2,186 | 2,547
Financial Liabilities |  |
Derivative Instruments, Gross amount of recognized liabilities | 250 | 777
Derivative Instruments, Gross amounts offset | (88) | (68)
Derivative Instruments, Net amount of liabilities | 162 | 709
Derivative Instruments, Cash collateral | (162) | (709)
Derivative Instruments, Non-cash collateral |  |
Derivative Instruments, Net amount |  |
Embedded Derivative Instruments, Gross amount of recognized liabilities | 3,502 | 6,519
Embedded Derivative Instruments, Gross amounts offset |  |
Embedded Derivative Instruments, Net amount of liabilities | 3,502 | 6,519
Embedded Derivative Instruments, Cash collateral |  |
Embedded Derivative Instruments, Non-cash collateral |  |
Embedded Derivative Instruments, Net amount | 3,502 | 6,519
Total, Gross amount of recognized liabilities | 3,752 | 7,296
Total, Gross amounts offset | (88) | (68)
Total, Net amount of liabilities | 3,664 | 7,228
Total, Cash collateral | (162) | (709)
Total, Net amount | 3,502 | 6,519
Other Assets [Member] |  |
Financial Assets |  |
Total, Net amount of assets | $ (279) | $ 260

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