| Revenues | | 5,659.00 | 5,426.00 | 5,132.00 | 21,865.00 |
| Cost Of Revenue | | 4,165.00 | 4,091.00 | 3,782.00 | 16,240.00 |
| Gross Profit | | 1,494.00 | 1,335.00 | 1,350.00 | - |
| | 873.00 | 764.00 | 825.00 | - |
| Selling, General, and Administrative | | 873.00 | 764.00 | 825.00 | - |
| Benefits Costs and Expenses | | 5,092.00 | 4,902.00 | 4,673.00 | - |
| Costs And Expenses | | 5,092.00 | 4,902.00 | 4,673.00 | - |
| Operating Income/Loss | | 621.00 | 571.00 | 525.00 | 2,110.00 |
| Income/Loss From Continuing Operations Before Tax | | 567.00 | 524.00 | 459.00 | 1,932.00 |
| Income Tax Expense/Benefit | | 105.00 | 66.00 | 73.00 | 82.00 |
| Income/Loss From Continuing Operations After Tax | | 462.00 | 458.00 | 386.00 | - |
| | 462.00 | 458.00 | 386.00 | 300.00 |
| Attributable To Parent | | 462.00 | 458.00 | 386.00 | 300.00 |
| Available To Common Stockholders, Basic | | 462.00 | 458.00 | 386.00 | - |
| Preferred Stock Dividends And Other Adjustments | - | - | - | - | - |
| Attributable To Noncontrolling Interest | - | - | - | - | - |
| Basic Average Shares | | 187.10 | 187.00 | 188.50 | - |
| Diluted Average Shares | | 188.10 | 187.80 | 189.10 | - |
| Basic Earnings Per Share | | 2.47 | 2.45 | 2.05 | - |
| Diluted Earnings Per Share | | 2.46 | 2.44 | 2.04 | - |
| Common Stock Dividends | | 1.20 | 1.20 | 1.20 | 1.20 |
| Participating Securities, Distributed And Undistributed Earnings/Loss, Basic | - | - | - | - | - |