Condensed Consolidated Statements of Shareholders’ Equity (unaudited) - USD ($) $ in Millions	Total	Preferred Stock	Preferred stock additional capital paid-in	Common stock par value	Common stock additional capital paid-in	Retained income	Deferred ESOP expense	Treasury stock	Accumulated other comprehensive income (loss)
Balance, beginning of period at Dec. 31, 2018			$ 1,930		$ 3,310	$ 44,033		$ (28,085)	$ 118
Increase (decrease) in equity
Preferred stock redemption			0
Forward contract on accelerated share repurchase agreement					150
Equity incentive plans activity					17
Net income	$ 2,143					2,143
Dividends on common stock (declared per share of $0.54, $0.50, $1.08 and $1.00)						(333)
Dividends on preferred stock						(61)
Shares acquired								(498)
Shares reissued under equity incentive plans, net								83
Change in unrealized net capital gains and losses	1,656								1,656
Change in unrealized foreign currency translation adjustments	9								9
Change in unamortized pension and other postretirement prior service credit	(23)								(23)
Balance, end of period at Jun. 30, 2019	$ 24,476	$ 0	1,930	$ 9	3,477	45,803	$ (3)	(28,500)	1,760
Increase (decrease) in equity
Dividends (in USD per share)	$ 1
Balance, beginning of period at Mar. 31, 2019			1,930		3,291	45,148		(28,042)	1,085
Increase (decrease) in equity
Preferred stock redemption			0
Forward contract on accelerated share repurchase agreement					150
Equity incentive plans activity					36
Net income	$ 851					851
Dividends on common stock (declared per share of $0.54, $0.50, $1.08 and $1.00)						(166)
Dividends on preferred stock						(30)
Shares acquired								(498)
Shares reissued under equity incentive plans, net								40
Change in unrealized net capital gains and losses	682								682
Change in unrealized foreign currency translation adjustments	4								4
Change in unamortized pension and other postretirement prior service credit	(11)								(11)
Balance, end of period at Jun. 30, 2019	$ 24,476	0	1,930	9	3,477	45,803	(3)	(28,500)	1,760
Increase (decrease) in equity
Dividends (in USD per share)	$ 0.5
Balance, beginning of period at Dec. 31, 2019	$ 25,998		2,248		3,463	48,074		(29,746)	1,950
Increase (decrease) in equity
Preferred stock redemption			(278)
Forward contract on accelerated share repurchase agreement					75
Equity incentive plans activity					3
Net income	1,799					1,799
Dividends on common stock (declared per share of $0.54, $0.50, $1.08 and $1.00)						(343)
Dividends on preferred stock						(62)
Shares acquired								(902)
Shares reissued under equity incentive plans, net								106
Change in unrealized net capital gains and losses	715								715
Change in unrealized foreign currency translation adjustments	(30)								(30)
Change in unamortized pension and other postretirement prior service credit	(7)								(7)
Balance, end of period at Jun. 30, 2020	$ 26,986	0	1,970	9	3,541	49,380	0	(30,542)	2,628
Increase (decrease) in equity
Dividends (in USD per share)	$ 1.08
Balance, beginning of period at Mar. 31, 2020			1,970		3,519	48,326		(30,209)	558
Increase (decrease) in equity
Preferred stock redemption			0
Forward contract on accelerated share repurchase agreement					0
Equity incentive plans activity					22
Net income	$ 1,250					1,250
Dividends on common stock (declared per share of $0.54, $0.50, $1.08 and $1.00)						(170)
Dividends on preferred stock						(26)
Shares acquired								(391)
Shares reissued under equity incentive plans, net								58
Change in unrealized net capital gains and losses	2,072								2,072
Change in unrealized foreign currency translation adjustments	9								9
Change in unamortized pension and other postretirement prior service credit	(11)								(11)
Balance, end of period at Jun. 30, 2020	$ 26,986	$ 0	$ 1,970	$ 9	$ 3,541	$ 49,380	$ 0	$ (30,542)	$ 2,628
Increase (decrease) in equity
Dividends (in USD per share)	$ 0.54