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 Income $ 531 $ 529
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 151 150
Realized investment (gains) losses (73) (42)
Deferred income taxes 15 14
Net changes in assets and liabilities, net of non-operating effects:    
Premiums, accounts and notes receivable (549) (431)
Reinsurance recoverables (11) 42
Deferred policy acquisition costs (76) (67)
Other assets (101) (63)
Insurance liabilities 455 262
Accounts payable, accrued expenses and other liabilities 157 (107)
Current income taxes 221 250
Other, net (56) (47)
Net cash provided by / (used in) operating activities 664 490
Proceeds from investments sold:    
Fixed maturities and equity securities 393 194
Investment maturities and repayments:    
Fixed maturities and equity securities 284 396
Commercial mortgage loans 166 127
Other sales, maturities and repayments (primarily short-term and other long-term investments) 488 879
Investments purchased or originated:    
Fixed maturities and equity securities (648) (1,445)
Commercial mortgage loans (90) 0
Other (primarily short-term and other long-term investments) (420) (572)
Property and equipment purchases (115) (97)
Acquisitions, net of cash acquired (107) 0
Other, net 0 12
Net cash provided by/ (used in) investing activities (49) (506)
Cash Flows from Financing Activities    
Deposits and interest credited to contractholder deposit funds 386 411
Withdrawals and benefit payments from contractholder deposit funds (361) (351)
Net change in short-term debt (5) (6)
Net proceeds on issuance of long-term debt 894 0
Repurchase of common stock (413) (615)
Issuance of common stock 99 43
Other, net 3 19
Net cash provided by / (used in) financing activities 603 (499)
Effect of foreign currency rate changes on cash and cash equivalents (18) (4)
Net increase (decrease) in cash and cash equivalents 1,200 (519)
Cash and cash equivalents, January 1 1,420 2,795
Cash and cash equivalents, March 31 2,620 2,276
Supplemental Disclosure of Cash Information:    
Income taxes paid, net of refunds 49 43
Interest paid $ 69 $ 70