Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues
Insurance premiums	$ 4,362	$ 3,018	$ 2,579
Fee income	5,733	5,369	5,171
Net investment income	4,844	4,760	4,631
Realized gain (loss):
Total other-than-temporary impairment losses on securities	(7)	(18)	(141)
Portion of loss recognized in other comprehensive income			41
Net other-than-temporary impairment losses on securities recognized in earnings	(7)	(18)	(100)
Realized gain (loss), excluding other-than-temporary impairment losses on securities	(85)	(438)	(410)
Total realized gain (loss)	(92)	(456)	(510)
Amortization of deferred gain on business sold through reinsurance	4	18	69
Other revenues	507	439	403
Total revenues	15,358	13,148	12,343
Expenses
Interest credited	2,589	2,558	2,527
Benefits	6,144	4,818	4,247
Commissions and other expenses	4,583	3,967	4,005
Interest and debt expense	136	126	116
Strategic digitization expense	76	43	8
Impairment of intangibles		905
Total expenses	13,528	12,417	10,903
Income (loss) before taxes	1,830	731	1,440
Federal income tax expense (benefit)	257	(1,287)	267
Net income (loss)	1,573	2,018	1,173
Other comprehensive income (loss), net of tax:
Unrealized investment gains (losses)	(3,314)	1,547	692
Funded status of employee benefit plans	2	(2)	(1)
Total other comprehensive income (loss), net of tax	(3,312)	1,545	691
Comprehensive income (loss)	$ (1,739)	$ 3,563	$ 1,864