Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Securities available for sale, at fair value:
Equity securities (cost $19 in 2014 and $17 in 2013)	$ 28		$ 21
Securities held to maturity, at amortized cost:
Fixed maturities	34,242		44,415
Other investments	171		463
Cash and cash equivalents	4,658		2,543
Total investments and cash	107,341		108,459
Receivables	842		1,165
Accrued investment income	762		798
Deferred policy acquisition costs	8,273		8,798
Property and equipment, at cost less accumulated depreciation	429		481
Other	2,120	[1]	1,606	[1]
Total assets	119,767		121,307
Policy liabilities:
Future policy benefits	65,646		69,136
Unpaid policy claims	3,630		3,763
Unearned premiums	8,626		10,642
Other policyholders' funds	6,031		5,861
Total policy liabilities	83,933		89,402
Income taxes	5,293		3,718
Payables for return of cash collateral on loaned securities	2,193		5,820
Notes payable	5,282		4,897
Other	4,719	[2]	2,850	[2]
Commitments and contingent liabilities (Note 14)
Total liabilities	101,420		106,687
Shareholders' equity:
Common stock of $.10 par value. In thousands: authorized 1,900,000 shares in 2014 and 2013; issued 668,132 shares in 2014 and 667,046 shares in 2013	67		67
Additional paid-in capital	1,711		1,644
Retained earnings	22,156		19,885
Accumulated other comprehensive income (loss):
Unrealized foreign currency translation gains (losses)	(2,541)		(1,505)
Unrealized gains (losses) on investment securities	4,672		1,035
Unrealized gains (losses) on derivatives	(26)		(12)
Pension liability adjustment	(126)		(81)
Treasury stock, at average cost	(7,566)		(6,413)
Total shareholders' equity	18,347		14,620
Total liabilities and shareholders' equity	119,767		121,307
Investments Other Than Consolidated Variable Interest Entities
Securities available for sale, at fair value:
Fixed maturities	61,407		53,227
Perpetual securities	2,240		2,479
Securities held to maturity, at amortized cost:
Fixed maturities	34,159		44,178
Variable Interest Entity, Consolidated
Securities available for sale, at fair value:
Fixed maturities	4,166		4,843
Perpetual securities	429		468
Securities held to maturity, at amortized cost:
Fixed maturities	$ 83		$ 237

[1] Includes $106 in 2014 and 2013 of derivatives from consolidated variable interest entities

[2] Includes $318 in 2014 and $207 in 2013 of derivatives from consolidated variable interest entities