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Reinsurance (Narrative) (Details) - Athene Holding Ltd. [Member] $ in Millions | Jun. 30, 2019 USD ($)
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Ceded Credit Risk [Line Items] |
Deposit assets | $ 7,600
Athene Holding Ltd. [Member] |
Ceded Credit Risk [Line Items] |
Reserves associated with modified coinsurance reinsurance arrangements | 233
Letter of credit | 205
AFS Securities [Member] |
Ceded Credit Risk [Line Items] |
Deposit assets | 3,300
Trading Securities [Member] |
Ceded Credit Risk [Line Items] |
Deposit assets | 3,200
Equity Securities [Member] |
Ceded Credit Risk [Line Items] |
Deposit assets | 81
Commercial Mortgage Loans [Member] |
Ceded Credit Risk [Line Items] |
Deposit assets | 583
Derivative Instruments [Member] |
Ceded Credit Risk [Line Items] |
Deposit assets | 119
Cash [Member] |
Ceded Credit Risk [Line Items] |
Deposit assets | $ 350

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