Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities
Net income		$ (285)	$ 1,428
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of deferred acquisition costs and value of business acquired		(52)	492
Amortization of deferred sales inducements		(11)	18
Accretion of net investment premiums, discounts and other		(91)	(54)
Net investment income (related party: 2020 – $(12) and 2019 – $(52); consolidated variable interest entities: 2020 – $(5), 2019 – $0)		(1)	(47)
Net recognized (gains) losses on investments and derivatives (related party: 2020 – $75 and 2019 – $(15); consolidated variable interest entities: 2020 – $7 and 2019 – $(8))		(1,214)	1,526
Policy acquisition costs deferred		(281)	(354)
Changes in operating assets and liabilities:
Accrued investment income		(29)	(76)
Interest sensitive contract liabilities		611	2,397
Future policy benefits, other policy claims and benefits, dividends payable to policyholders and reinsurance recoverable		39	921
Funds withheld assets and liabilities		375	(1,886)
Other assets and liabilities		(87)	270
Net cash provided by operating activities		1,402	1,583
Sales, maturities and repayments of:
Available-for-sale securities (related party: 2020 – $209 and 2019 – $73)		6,425	5,567
Trading securities (related party: 2020 – $31 and 2019 – $60; consolidated variable interest entities: 2020 – $10 and 2019 – $33)		85	143
Equity securities (related party: 2020 – $3 and 2019 – $51; consolidated variable interest entities: 2020 – $0 and 2019 – $51)		3	70
Mortgage loans		1,136	994
Investment funds (related party: 2020 – $241 and 2019 – $116; consolidated variable interest entities: 2020 – $20 and 2019 – $5)		313	186
Derivative instruments and other invested assets		765	653
Short-term investments (related party: 2020 – $28 and 2019 – $0)		650	163
Purchases of:
Available-for-sale securities (related party: 2020 – $(611) and 2019 – $(436))		(9,624)	(7,813)
Trading securities (related party: 2020 – $(150) and 2019 – $(6))		(152)	(382)
Equity securities		(16)	(332)
Mortgage loans		(2,317)	(2,558)
Investment funds (related party: 2020 – $(807) and 2019 – $(402); consolidated variable interest entities: 2020 – $0 and 2019 – $(21))		(831)	(500)
Derivative instruments and other invested assets		(1,034)	(581)
Short-term investments (related party: 2020 – $(28) and 2019 – $0)		(412)	(259)
Cash Divested from Deconsolidation		3	0
Other investing activities, net		276	631
Net cash used in investing activities		(4,736)	(4,018)
Cash flows from financing activities
Issuance of common stock		350	0
Repayment of short-term debt		75	0
Proceeds from long-term debt		499	0
Deposits on investment-type policies and contracts		8,398	5,972
Withdrawals on investment-type policies and contracts		(3,871)	(3,275)
Payments for coinsurance agreements on investment-type contracts, net		(11)	(31)
Capital contributions from noncontrolling interests		240	0
Capital distributions to noncontrolling interests		(46)	0
Net change in cash collateral posted for derivative transactions and securities to repurchase		(461)	(1,214)
Issuance of preferred stock, net of expenses		583	839
Preferred stock dividends		37	0
Repurchase of common stock		(328)	(427)
Other financing activities, net		71	(23)
Net cash provided by financing activities		6,234	4,269
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents		(21)	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect		2,879	1,834
Cash and cash equivalents at beginning of year	[1]	4,642	3,405
Cash and cash equivalents at end of period	[1]	7,521	5,239
Non-cash transactions
Deposits on investment-type policies and contracts through reinsurance agreements		28,077	423
Withdrawals on investment-type policies and contracts through reinsurance agreements		1,895	1,873
Reinsurance Settlements [Member]
Non-cash transactions
Transfer to Investments		53	31
Pension Risk Transfer Premiums [Member]
Non-cash transactions
Transfer to Investments		829	1,918
Related Party
Adjustments to reconcile net income to net cash provided by operating activities:
Net investment income (related party: 2020 – $(12) and 2019 – $(52); consolidated variable interest entities: 2020 – $(5), 2019 – $0)		(12)	(52)
Net recognized (gains) losses on investments and derivatives (related party: 2020 – $75 and 2019 – $(15); consolidated variable interest entities: 2020 – $7 and 2019 – $(8))		(75)	15
Changes in operating assets and liabilities:
Accrued investment income		(26)	3
Interest sensitive contract liabilities		102	264
Future policy benefits, other policy claims and benefits, dividends payable to policyholders and reinsurance recoverable		140	162
Funds withheld assets and liabilities		(325)	(953)
Sales, maturities and repayments of:
Available-for-sale securities (related party: 2020 – $209 and 2019 – $73)		209	73
Trading securities (related party: 2020 – $31 and 2019 – $60; consolidated variable interest entities: 2020 – $10 and 2019 – $33)		31	60
Mortgage loans		0	4
Investment funds (related party: 2020 – $241 and 2019 – $116; consolidated variable interest entities: 2020 – $20 and 2019 – $5)		241	116
Short-term investments (related party: 2020 – $28 and 2019 – $0)		28	0
Purchases of:
Available-for-sale securities (related party: 2020 – $(611) and 2019 – $(436))		(611)	(436)
Trading securities (related party: 2020 – $(150) and 2019 – $(6))		(150)	(6)
Investment funds (related party: 2020 – $(807) and 2019 – $(402); consolidated variable interest entities: 2020 – $0 and 2019 – $(21))		(807)	(402)
Short-term investments (related party: 2020 – $(28) and 2019 – $0)		(28)	0
Cash flows from financing activities
Deposits on investment-type policies and contracts		39	117
Withdrawals on investment-type policies and contracts		(210)	(225)
Non-cash transactions
Deposits on investment-type policies and contracts through reinsurance agreements		156	108
Withdrawals on investment-type policies and contracts through reinsurance agreements		730	$ 910
Related Party | Investment funds
Non-cash transactions
Transfer to Investments		$ 1,147

[1] Includes cash and cash equivalents, restricted cash, and cash and cash equivalents of consolidated variable interest entities.