Statement of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash Flows from Operating Activities
Net Income	$ 751	$ 805
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	270	166
Realized investment gains	(9)	(43)
Deferred income taxes	43	206
Gains on sale of businesses (excluding discontinued operations)	(9)	(14)
Net changes in assets and liabilities, net of non-operating effects:
Premiums, accounts and notes receivable	(96)	(104)
Reinsurance recoverables	37	23
Deferred policy acquisition costs	(72)	(75)
Other assets	(69)	(40)
Insurance liabilities	731	103
Accounts payable, accrued expenses and other liabilities	143	(297)
Current income taxes	129	(144)
Other, net	28	(7)
Net cash provided by operating activities	1,877	579
Proceeds from investments sold:
Fixed maturities	347	300
Equity securities	8	4
Commercial mortgage loans	286	52
Other (primarily short-term and other long-term investments)	429	556
Investment maturities and repayments:
Fixed maturities	670	673
Commercial mortgage loans	199	201
Investments purchased:
Fixed maturities	(1,330)	(1,511)
Equity securities	(4)	(15)
Commercial mortgage loans	(208)	(109)
Other (primarily short-term and other long-term investments)	(415)	(669)
Property and equipment purchases	(208)	(187)
Acquisitions and dispositions. net	(3,197)	1
Net cash used in investing activities	(3,423)	(704)
Cash Flows from Financing Activities
Deposits and interest credited to contractholder deposit funds	688	676
Withdrawals and benefit payments from contractholder deposit funds	(626)	(596)
Change in cash overdraft position	9	(30)
Net change in short-term debt	122	(222)
Issuance of long-term debt	0	587
Repayment of long-term debt	(326)	(2)
Repurchase of common stock	0	(225)
Issuance of common stock	52	96
Common dividends paid	(11)	(11)
Net cash provided by financing activities	(92)	273
Effect of foreign currency rate changes on cash and cash equivalents	(7)	21
Net increase (decrease) in cash and cash equivalents	(1,645)	169
Cash and cash equivalents, January 1,	4,690	1,605
Cash and cash equivalents, June 30,	3,045	1,774
Supplemental Disclosure of Cash Information:
Income taxes paid, net of refunds	211	296
Interest paid	$ 116	$ 88