Consolidated Balance Sheets - USD ($) $ in Millions		Dec. 31, 2016		Dec. 31, 2015
Securities held to maturity, at amortized cost:
Fixed maturities		$ 33,350		$ 33,459
Other investments		1,450	[1]	294
Cash and cash equivalents		4,859		4,350
Total investments and cash		116,361		105,897
Receivables		669		705
Accrued investment income		754		768
Deferred policy acquisition costs		8,993		8,511
Property and equipment, at cost less accumulated depreciation		433		427
Other	[2]	2,609		1,948
Total assets		129,819		118,256
Policy liabilities:
Future policy benefits		76,106		69,687
Unpaid policy claims		4,045		3,802
Unearned premiums		6,916		7,857
Other policyholders' funds		6,659		6,285
Total policy liabilities		93,726		87,631
Income taxes		5,387		4,340
Payables for return of cash collateral on loaned securities		526		941
Notes payable		5,360		4,971
Other	[3]	4,338		2,665
Commitments and contingent liabilities (Note 15)
Total liabilities		109,337		100,548
Shareholders' equity:
Common stock of $.10 par value. In thousands: authorized 1,900,000 shares in 2016 and 2015; issued 671,249 shares in 2016 and 669,723 shares in 2015		67		67
Additional paid-in capital		1,976		1,828
Retained earnings		25,981		24,007
Accumulated other comprehensive income (loss):
Unrealized foreign currency translation gains (losses)		(1,983)		(2,196)
Unrealized gains (losses) on investment securities		4,805		2,986
Unrealized gains (losses) on derivatives		(24)		(26)
Pension liability adjustment		(168)		(139)
Treasury stock, at average cost		(10,172)		(8,819)
Total shareholders' equity		20,482		17,708
Total liabilities and shareholders' equity		129,819		118,256
Investments Other Than Consolidated Variable Interest Entities
Securities available for sale, at fair value:
Fixed maturities		68,778		60,795
Perpetual securities		1,425		1,719
Equity securities		265		135
Securities held to maturity, at amortized cost:
Fixed maturities		33,350		33,459
Variable Interest Entity, Consolidated
Securities available for sale, at fair value:
Fixed maturities		4,982		4,554
Perpetual securities		208		228
Equity securities		$ 1,044		$ 363

[1] Includes $819 in 2016 of loan receivables from consolidated variable interest entities

[2] Includes $127 in 2016 and $102 in 2015 of derivatives from consolidated variable interest entities

[3] Includes $146 in 2016 and $293 in 2015 of derivatives from consolidated variable interest entities