| The following table provides information by level for nonfinancial assets and liabilities that were measured at fair value during 2009, as defined by SFAS No. 157, on a nonrecurring basis. | ||||||||||||||||
| Three months ended June 30, 2009 | Fair Value Measurements Using | |||||||||||||||
| (millions) | Quoted Prices | |||||||||||||||
| Fair value | in Active | Significant | ||||||||||||||
| Description | Three-months | Markets for | Other | Significant | Total Gains | |||||||||||
| ended June 30, | Identical Assets | Observable | Unobservable | (Losses) | ||||||||||||
| 2009 | (Level 1) | Inputs (Level 2) | Inputs (Level 3) | |||||||||||||
| Long-lived assets held and used | $ | 41 | $ | — | $ | 41 | $ | — | $ | (26 | ||||||
| Business combinations | — | — | — | — | — | |||||||||||
| Total | $ | (26 | ||||||||||||||
| Six months ended June 30, 2009 | Fair Value Measurements Using | |||||||||||||||
| (millions) | Quoted Prices | |||||||||||||||
| in Active | Significant | |||||||||||||||
| Fair value | Markets for | Other | Significant | |||||||||||||
| Description | Six-months ended | Identical Assets | Observable | Unobservable | Total Gains | |||||||||||
| June 30, 2009 | (Level 1) | Inputs (Level 2) | Inputs (Level 3) | (Losses) | ||||||||||||
| Long-lived assets held and used | $ | 41 | $ | — | $ | 41 | $ | — | $ | (32 | ||||||
| Business combinations | 7 | — | 7 | — | — | |||||||||||
| Total | $ | (32 | ||||||||||||||
| June 30, 2009 | Dec. 31, 2008 | |||||||||||||||
| (Millions) | Carrying | Fair | Carrying | Fair | ||||||||||||
| Amount | Value | Amount | Value | |||||||||||||
| Dealer remarketable securities | $ | 350 | $ | 365 | $ | 350 | $ | 364 | ||||||||
| Long-term debt, excluding current portion | 5,172 | 5,359 | 5,166 | 5,375 | ||||||||||||