Commitments and Contingencies - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Other Commitments [Line Items]
Letters of Credit Outstanding, Amount	$ 230,000,000
Advances from FHLB	926,000,000	$ 573,000,000
COLI asset value	362,000,000
Value of guarantees on COLI	187,000,000
Athene Global Funding | Senior Notes
Other Commitments [Line Items]
Maximum borrowing capacity	10,000,000,000
Athene Global Funding | Funding Agreements
Other Commitments [Line Items]
Interest sensitive contract liabilities	2,700,000,000	$ 2,996,000,000
Pending Litigation | Caldera
Other Commitments [Line Items]
Loss Contingency, Damages Sought, Value	$ 1,500,000,000