| Six Months Ended | ||||||||
| ($ in millions, except ratio) | June 30, 2014 | June 30, 2013 | ||||||
| Income before income taxes | $ | 516 | $ | 464 | ||||
| Losses related to equity method investees | 6 | 2 | ||||||
| 522 | 466 | |||||||
| Add/(deduct): | ||||||||
| Fixed charges | 105 | 113 | ||||||
| Interest capitalized | (15 | ) | (17 | ) | ||||
| Distributed income of equity method investees | 2 | 4 | ||||||
| Earnings available for fixed charges | $ | 614 | $ | 566 | ||||
| Fixed charges: | ||||||||
Interest expensed and capitalized (1) | $ | 75 | $ | 77 | ||||
| Estimate of interest within rent expense | 30 | 36 | ||||||
| Total fixed charges | $ | 105 | $ | 113 | ||||
| Ratio of earnings to fixed charges | 5.8 | 5.0 | ||||||
(1) | “Interest expensed and capitalized” includes amortized premiums, discounts, and capitalized expenses related to indebtedness. |
