2006 2005 2004
Common Stock Including Additional Paid in Capital [Member] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Value, New Issues 411,000,000
Stock Issued During Period, Value, from Equity Unit Contracts 1,020,000,000 0 0
Stock Issued During Period And Compensation Expense Associated with Incentive and Stock Compensation Plans 190,000,000 443,000,000 200,000,000
Adjustments to Additional Paid in Capital, Tax Effect from Share-based Compensation 44,000,000 57,000,000 27,000,000
Stockholders' Equity 6,324,000,000 5,070,000,000 4,570,000,000
Retained Earnings [Member] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income 2,745,000,000 2,274,000,000 2,115,000,000
Dividends, Common Stock (N) 531,000,000 350,000,000 331,000,000
Stockholders' Equity 12,421,000,000 10,207,000,000 8,283,000,000
Treasury Stock [Member] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward]
Return of Shares to Treasury Under Incentive and Stock Compensation Plans, Value 5,000,000 2,000,000 2,000,000
Stockholders' Equity (47,000,000) (42,000,000) (40,000,000)
Accumulated Other Comprehensive Income [Member] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other Comprehensive Income, Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax 89,000,000 (1,193,000,000) 106,000,000
Other Comprehensive Income, Derivatives Qualifying as Hedges, Net of Tax, Period Increase (Decrease) (124,000,000) 105,000,000 (173,000,000)
Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Period Increase (Decrease) 29,000,000 (107,000,000) 59,000,000
Other Comprehensive Income, Minimum Pension Liability Net Adjustment, Net of Tax 560,000,000 (140,000,000) (105,000,000)
Comprehensive Income, Net of Tax 554,000,000 (1,335,000,000) 179,000,000
Application of Recognition Provisions of SFAS 158, Effect on Accumulated Other Comprehensive Income, Net of Tax (N) (466,000,000) 0 0
Stockholders' Equity 178,000,000 90,000,000 1,425,000,000
Equity Component [Domain] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other Comprehensive Income, Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax 89,000,000 (1,193,000,000) 106,000,000
Cumulative Effect of Change in Accounting Principle Presented on Income Statement, Net of Tax (23,000,000)
Other Comprehensive Income, Derivatives Qualifying as Hedges, Net of Tax, Period Increase (Decrease) (124,000,000) 105,000,000 (173,000,000)
Other Comprehensive Income, Minimum Pension Liability Net Adjustment, Net of Tax (560,000,000) 140,000,000 105,000,000
Comprehensive Income, Net of Tax 3,299,000,000 939,000,000 2,294,000,000
Net Income 2,745,000,000 2,274,000,000 2,115,000,000
Stockholders' Equity 18,876,000,000 15,325,000,000 14,238,000,000
Common Stock [Member] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, New Issues 6,703,000
Stock Issued During Period, Shares, from Equity Unit Contracts 17,856,000,000
Stock Issued During Period, Shares, Share-based Compensation 3,358,000,000 7,988,000 4,157,000
Return of Shares to Treasury Under Incentive and Stock Compensation Plans, Shares (N) 51,000,000 44,000,000 32,000,000
Shares, Issued 323,315,000 302,152,000 294,208,000