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Amount of unrealized and realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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Fair Value of Assets and Liabilities - Change in unrealized gains and losses included in net income for level 3 assets and liabilities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Gains (losses) included in net income for Level 3 assets and liabilities:
Recurring Level 3 assets	$ 3	$ 11	$ (15)	$ 24
Gains (losses) for Level 3 liabilities still held at the balance sheet date, included in earnings	(6)	(14)	(27)	(54)
Gains (losses) for Level 3 assets and liabilities still held at the balance sheet date, included in earnings	(3)	(3)	(42)	(30)
Changes in unrealized net capital gains and losses reported in OCI	2		(2)
Contractholder funds: Derivatives embedded in life and annuity contracts
Gains (losses) included in net income for Level 3 assets and liabilities:
Gains (losses) for Level 3 liabilities still held at the balance sheet date, included in earnings	(6)	(14)	(27)	(54)
Municipal
Gains (losses) included in net income for Level 3 assets and liabilities:
Recurring Level 3 assets	0	0	1	0
Changes in unrealized net capital gains and losses reported in OCI	0		2
Corporate
Gains (losses) included in net income for Level 3 assets and liabilities:
Recurring Level 3 assets	1	0	0	0
Fixed income securities
Gains (losses) included in net income for Level 3 assets and liabilities:
Recurring Level 3 assets	1	0	1	0
Equity securities
Gains (losses) included in net income for Level 3 assets and liabilities:
Recurring Level 3 assets	2	11	(16)	25
Free-standing derivatives, net
Gains (losses) included in net income for Level 3 assets and liabilities:
Recurring Level 3 assets	0	0	0	(1)
Corporate - public
Gains (losses) included in net income for Level 3 assets and liabilities:
Changes in unrealized net capital gains and losses reported in OCI	0		1
Corporate - privately placed
Gains (losses) included in net income for Level 3 assets and liabilities:
Changes in unrealized net capital gains and losses reported in OCI	1		(4)
ABS
Gains (losses) included in net income for Level 3 assets and liabilities:
Changes in unrealized net capital gains and losses reported in OCI	1		(1)
Net Investment Income
Gains (losses) included in net income for Level 3 assets and liabilities:
Recurring Level 3 assets	(1)	5	(24)	10
Realized capital gains (losses)
Gains (losses) included in net income for Level 3 assets and liabilities:
Recurring Level 3 assets	4	6	9	14
Life contract benefits
Gains (losses) included in net income for Level 3 assets and liabilities:
Recurring Level 3 assets	8	(1)	(6)	2
Interest credited to contractholder funds
Gains (losses) included in net income for Level 3 assets and liabilities:
Recurring Level 3 assets	$ (14)	$ (13)	$ (21)	$ (56)