Years Ended December 31, | ||||||||||||||||||||
(in millions) | 2014 | 2013 | 2012 | 2011 | 2010 | |||||||||||||||
Earnings as defined for fixed charges calculation | ||||||||||||||||||||
Add: | ||||||||||||||||||||
Pretax income from continuing operations | $ | 556 | $ | 581 | $ | (123 | ) | $ | 242 | $ | 441 | |||||||||
Fixed charges | 182 | 185 | 184 | 178 | 161 | |||||||||||||||
Total earnings | $ | 738 | $ | 766 | $ | 61 | $ | 420 | $ | 602 | ||||||||||
Fixed charges: | ||||||||||||||||||||
Interest on debt, including capitalized portions | $ | 176 | $ | 179 | $ | 178 | $ | 171 | $ | 154 | ||||||||||
Estimate of interest within rental expense | 6 | 6 | 6 | 7 | 7 | |||||||||||||||
Total fixed charges | $ | 182 | $ | 185 | $ | 184 | $ | 178 | $ | 161 | ||||||||||
Ratio of earnings to fixed charges | 4.1 | 4.1 | 0.3 | (a) | 2.4 | 3.7 |
(a) | Earnings insufficient to cover fixed charges by approximately $123 million during the year ended December 31, 2012 due primarily to a non-cash impairment charge. |