Consolidated Statements of Cash Flows (USD $) In Millions	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net earnings	$ 674	$ 1,217
Adjustments to reconcile net earnings to net cash provided by operating activities:
Change in receivables and advance premiums	926	423
Increase in deferred policy acquisition costs	(225)	(164)
Increase in policy liabilities	1,922	1,473
Change in income tax liabilities	(82)	181
Realized investment (gains) losses	1,247	135
Other, net	(84)	(242)
Net cash provided (used) by operating activities	4,378	3,023
Securities available for sale:
Fixed maturities sold	1,767	1,055
Fixed maturities matured or called	775	312
Perpetual securities sold	226	582
Perpetual securities matured or called	61	0
Equity securities sold	0	328
Securities held to maturity:
Fixed maturities matured or called	325	2
Securities available for sale:
Fixed maturities acquired	(4,822)	(4,606)
Equity securities acquired	0	(330)
Securities held to maturity:
Fixed maturities acquired	(3,484)	(642)
Cash received as collateral on loaned securities, net	147	134
Other, net	(29)	(11)
Net cash provided (used) by investing activities	(5,034)	(3,176)
Cash flows from financing activities:
Purchases of treasury stock	(222)	(5)
Principal payments under debt obligations	(1)	(2)
Dividends paid to shareholders	(260)	(262)
Change in investment-type contracts, net	275	191
Treasury stock reissued	26	36
Other, net	7	35
Net cash provided (used) by financing activities	(175)	(7)
Effect of exchange rate changes on cash and cash equivalents	1	21
Net change in cash and cash equivalents	(830)	(139)
Cash and cash equivalents, beginning of period	2,121	2,323
Cash and cash equivalents, end of period	1,291	2,184
Supplemental disclosures of cash flow information:
Income taxes paid	460	532
Interest paid	72	52
Impairment losses included in realized investment losses	933	42
Noncash financing activities:
Capitalized lease obligations	1	1
Treasury stock issued for:
Shareholder dividend reinvestment	21	0
Share-based compensation grants	$ 2	$ 3

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