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Investments (Schedule Of Increase (Decrease) In Payables For Collateral On Investments) (Details) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017
Increase (decrease) in payables for collateral on investments |  |
Collateral payable for derivative investments | $ (399) | $ 41
Securities pledged under securities lending agreements | (105) | (16)
Securities pledged under repurchase agreements | (381) | (2)
Investments pledged for FHLBI | 680 | (50)
Total increase (decrease) in payables for collateral on investments | $ (205) | $ (27)

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- Definition The net change during the reporting period in the amount of cash that is received related to collateral payable held for derivative instruments. + References No definition available. + Details
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- Definition The net change during the reporting period in the amount of cash that is received related to securities pledged under reverse repurchase agreements + References No definition available. + Details
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- Definition The net change during the reporting period in the amount of cash that is received related to securities pledged under securities lending agreements. + References No definition available. + Details
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- Definition The net change during the reporting period in the amount of cash that is received related to securities pledged for Federal Home Loan Bank of Indianapolis. + References No definition available. + Details
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- Definition The increase (decrease) during the reporting period in the amount that is received as security when loaning securities. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- References No definition available. + Details
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