Business Held for Sale and Discontinued Operations - Discontinued Operations Income Statements (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Benefits and expenses:
Income (loss) from discontinued operations, net of tax	$ (93)	$ 42	$ (221)	$ 22
Discontinued Operations, Held-for-sale
Benefits and expenses:
Income (loss) from discontinued operations, net of tax			(221)	22
Individual Life Transaction | Discontinued Operations, Held-for-sale
Revenues:
Net investment income			304	327
Fee income			352	371
Premiums			15	15
Total net realized capital gains (losses)			17	54
Other revenue			(9)	(4)
Total revenues			679	763
Benefits and expenses:
Interest credited and other benefits to contract owners/policyholders			553	533
Operating expenses			68	43
Net amortization of Deferred policy acquisition costs and Value of business acquired			30	51
Interest expense			4	5
Total benefits and expenses			655	632
Income (loss) from discontinued operations before income taxes			24	131
Income tax expense (benefit)			5	27
Loss on sale, net of tax			(240)	0
Income (loss) from discontinued operations, net of tax			(221)	104
2018 Transaction | Discontinued Operations, Held-for-sale
Benefits and expenses:
Income (loss) from discontinued operations, net of tax			$ 0	$ (82)