Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Cash flows from operating activities:
Net earnings	$ 663		$ 732
Adjustments to reconcile net earnings to net cash provided by operating activities:
Change in receivables and advance premiums	141		171
Increase in deferred policy acquisition costs	(29)		(26)
Increase in policy liabilities	835		978
Change in income tax liabilities	(156)		(320)
Realized investment (gains) losses	(13)		46
Other, net	19		34
Net cash provided (used) by operating activities	1,460		1,615
Securities available for sale:
Fixed maturities sold	484		677
Fixed maturities matured or called	66		222
Perpetual securities matured or called	156		0
Securities held to maturity:
Fixed maturities matured or called	85		4,450
Costs of investments acquired:
Available for sale fixed maturities acquired	(1,442)		(4,597)
Other investments, net	(7)		143
Settlement of derivatives, net	(1,983)		(320)
Cash received (pledged or returned) as collateral, net	503		(2,677)
Other, net	60		(21)
Net cash provided (used) by investing activities	(2,078)		(2,123)
Cash flows from financing activities:
Purchases of treasury stock	(610)		(421)
Proceeds from borrowings	989		0
Dividends paid to shareholders	(165)		(163)
Change in investment-type contracts, net	84		536
Treasury stock reissued	13		16
Other, net	11		0
Net cash provided (used) by financing activities	322		(32)
Effect of exchange rate changes on cash and cash equivalents	1		(9)
Net change in cash and cash equivalents	(295)		(549)
Cash and cash equivalents, beginning of period	4,658		2,543
Cash and cash equivalents, end of period	4,363		1,994
Supplemental disclosures of cash flow information:
Income taxes paid	517		699
Interest paid	47		51
Noncash interest	36		30
Impairment losses included in realized investment losses	6	[1]	3	[1]
Associate stock bonus
Treasury stock issued for:
Treasury stock issued	8		7
Shareholder dividend reinvestment
Treasury stock issued for:
Treasury stock issued	6		7
Share-based compensation grants
Treasury stock issued for:
Treasury stock issued	$ 4		$ 4

[1] Includes $6 and $3 for the three-month periods ended March 31, 2015 and 2014, respectively, from change in intent to sell securities