Adoption of Accounting Pronouncement - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended	9 Months Ended			12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Mar. 31, 2022	Jun. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2022	Dec. 31, 2022
Revenues
Investment related gains (losses)	$ (2,624)	$ (2,848)	$ (4,212)		$ (1,193)	$ (12,811)
Total revenues	1,436	2,310	(281)	$ 1,526	18,182	3,836		$ 7,623
Benefits and expenses
Interest sensitive contract benefits	333	171	(99)	(752)	3,634	(581)		538
Future policy and other policy benefits	368	3,270	2,184	7,960	10,346	11,230		12,465
Market risk benefits remeasurement (gains) losses	(441)	(458)	(622)	(1,231)	(166)	(1,689)		(1,657)
Amortization of deferred acquisition costs, deferred sales inducements and value of business acquired	211	112	98	206	502	318		444
Policy and other operating expenses	472	388	338	695	1,359	1,083		1,495
Total benefits and expenses	943	3,483	1,899	6,878	15,675	10,361		13,285
Income (loss) before income taxes	493	(1,173)	(2,180)	(5,352)	2,507	(6,525)		(5,662)
Income tax expense (benefit)	162	(121)	(284)	(662)	458	(783)		(646)
Net income (loss)	331	(1,052)	(1,896)	(4,690)	2,049	(5,742)	$ (5,742)	(5,016)
Less: Net income (loss) attributable to noncontrolling interests	(155)	(465)	(881)	(1,970)	354	(2,435)		(2,106)
Net income (loss) attributable to Athene Holding Ltd. shareholders	486	(587)	(1,015)	(2,720)	1,695	(3,307)		(2,910)
Less: Preferred stock dividends	44	35	35	70	136	105		141
Net income (loss) available to Athene Holding Ltd. common shareholder	$ 442	$ (622)	(1,050)	(2,790)	$ 1,559	(3,412)		(3,051)
Reported
Revenues
Investment related gains (losses)			(4,200)			(12,812)
Total revenues			(269)	1,526		3,835		7,623
Benefits and expenses
Interest sensitive contract benefits			(41)	(662)		(573)		541
Future policy and other policy benefits			2,085	7,694		10,988		12,310
Market risk benefits remeasurement (gains) losses			0	0		0		0
Amortization of deferred acquisition costs, deferred sales inducements and value of business acquired			125	250		375		509
Policy and other operating expenses			335	693		1,081		1,493
Total benefits and expenses			2,504	7,975		11,871		14,853
Income (loss) before income taxes			(2,773)	(6,449)		(8,036)		(7,230)
Income tax expense (benefit)			(407)	(891)		(1,101)		(976)
Net income (loss)			(2,366)	(5,558)		(6,935)		(6,254)
Less: Net income (loss) attributable to noncontrolling interests			(883)	(1,955)		(2,431)		(2,092)
Net income (loss) attributable to Athene Holding Ltd. shareholders			(1,483)	(3,603)		(4,504)		(4,162)
Less: Preferred stock dividends			35	70		105		141
Net income (loss) available to Athene Holding Ltd. common shareholder			(1,518)	(3,673)		(4,609)		(4,303)
Adoption
Revenues
Investment related gains (losses)			(12)			1
Total revenues			(12)	0		1		0
Benefits and expenses
Interest sensitive contract benefits			(58)	(90)		(8)		(3)
Future policy and other policy benefits			99	266		242		155
Market risk benefits remeasurement (gains) losses			(622)	(1,231)		(1,689)		(1,657)
Amortization of deferred acquisition costs, deferred sales inducements and value of business acquired			(27)	(44)		(57)		(65)
Policy and other operating expenses			3	2		2		2
Total benefits and expenses			(605)	(1,097)		(1,510)		(1,568)
Income (loss) before income taxes			593	1,097		1,511		1,568
Income tax expense (benefit)			123	229		318		330
Net income (loss)			470	868		1,193		1,238
Less: Net income (loss) attributable to noncontrolling interests			2	(15)		(4)		(14)
Net income (loss) attributable to Athene Holding Ltd. shareholders			468	883		1,197		1,252
Less: Preferred stock dividends			0	0		0		0
Net income (loss) available to Athene Holding Ltd. common shareholder			$ 468	$ 883		$ 1,197		$ 1,252