|
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Millions, except Share data |
Jun. 30, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Current assets: | Â | Â |
| Allowance for bad debts | $ 128 | $ 91 |
| Accumulated depreciation | $ 6,611 | $ 6,064 |
| Shareholders' equity | Â | Â |
| Common stock, par value (in dollars per share) | $ 2.50 | $ 2.50 |
| Common stock, shares authorized (in shares) | 2,000 | 2,000 |
| Common stock, shares issued (in shares) | 1,072 | 1,069 |
| Treasury shares (in shares) | 154 | 159 |