Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues
Insurance premiums	$ 777	$ 807
Fee income	1,456	1,354
Net investment income	1,233	1,238
Realized gain (loss):
Total other-than-temporary impairment losses on securities	(2)	(4)
Portion of loss recognized in other comprehensive income
Net other-than-temporary impairment losses on securities recognized in earnings	(2)	(4)
Realized gain (loss), excluding other-than-temporary impairment losses on securities	14	(35)
Total realized gain (loss)	12	(39)
Amortization of deferred gain on business sold through reinsurance		18
Other revenues	131	122
Total revenues	3,609	3,500
Expenses
Interest credited	653	647
Benefits	1,358	1,290
Commissions and other expenses	1,057	1,015
Interest and debt expense	91	64
Strategic digitization expense	15	9
Total expenses	3,174	3,025
Income (loss) before taxes	435	475
Federal income tax expense (benefit)	68	40
Net income (loss)	367	435
Other comprehensive income (loss), net of tax	(1,639)	281
Comprehensive income (loss)	$ (1,272)	$ 716
Net Income (Loss) Per Common Share
Basic (in dollars per share)	$ 1.68	$ 1.93
Diluted (in dollars per share)	1.64	1.89
Cash dividends declared per common share	$ 0.33	$ 0.29