Acquisitions - Narrative (Details) - F&G - USD ($) $ / shares in Units, shares in Millions, $ in Millions			3 Months Ended	9 Months Ended
	Aug. 26, 2020	Jun. 01, 2020	Sep. 30, 2020	Sep. 30, 2020
Business Acquisition [Line Items]
Percentage of outstanding equity acquired		100.00%
Consideration transferred		$ 2,700
Consideration transferred (in shares)	1	24
Cash paid for acquisition	$ 100	$ 1,800
Right to purchase and receive upon exercise in cash (in usd per share)		$ 8.18
Consideration, cash paid per acquiree share (in usd per share)		$ 0.0833
Shares converted, common and preferred (in shares)		7
Goodwill expected to be tax deductible		$ 16
Increase in investments in unconsolidated affiliates		30
Increase in goodwill		6
Decrease in other intangible assets		37
Increase in deferred tax liability		$ 4
Pro forma revenues			$ 442	$ 566
Pro forma net earning (loss)			$ (38)	$ (1)