Item 6. Selected Financial Data Year Ended December 31, 2014 2013 2012 2011 2010 Operating Results Net sales $ 6,617 $ 6,769 $ 7,224 $ 7,544 $ 5,921 Income from continuing operations before income taxes 260 368 364 306 55 Income from continuing operations 343 261 315 240 36 Loss from discontinued operations (15) (1) — (8) (21) Net income 328 260 315 232 15 Net income attributable to the parent company $ 319 $ 244 $ 300 $ 219 $ 4 Preferred stock dividend requirements 7 25 31 31 32 Preferred stock redemption premium — 232 — — — Net income (loss) available to common stockholders $ 312 $ (13) $ 269 $ 188 $ (28) Net income (loss) per share available to common stockholders Basic Income (loss) from continuing operations $ 2.07 $ (0.08) $ 1.82 $ 1.34 $ (0.05) Loss from discontinued operations (0.10) (0.01) — (0.06) (0.15) Net income (loss) 1.97 (0.09) 1.82 1.28 (0.20) Diluted Income (loss) from continuing operations $ 1.93 $ (0.08) $ 1.40 $ 1.05 $ (0.05) Loss from discontinued operations (0.09) (0.01) — (0.03) (0.15) Net income (loss) 1.84 (0.09) 1.40 1.02 (0.20) Depreciation and amortization of intangibles $ 213 $ 262 $ 277 $ 307 $ 314 Net cash provided by operating activities 510 577 339 370 287 Purchases of property, plant and equipment 234 209 164 196 120 Financial Position Cash and cash equivalents and marketable securities $ 1,290 $ 1,366 $ 1,119 $ 987 $ 1,144 Total assets 4,930 5,129 5,144 5,277 5,101 Long-term debt 1,613 1,567 803 831 780 Total debt 1,678 1,624 904 902 947 Preferred stock — 372 753 753 762 Common stock and additional paid-in capital 2,642 2,842 2,670 2,644 2,614 Treasury stock (33) (366) (25) (9) (4) Total parent company stockholders' equity 1,080 1,309 1,836 1,730 1,680 Book value per share $ 6.83 $ 8.94 $ 12.41 $ 11.81 $ 11.94 Common Share Information Dividends declared per common share $ 0.20 $ 0.20 $ 0.20 $ — $ — Weighted-average common shares outstanding Basic 158.0 146.4 148.0 146.6 140.8 Diluted 173.5 146.4 214.7 215.3 140.8 Market prices High $ 24.82 $ 23.46 $ 16.76 $ 19.35 $ 17.99 Low 16.81 15.17 11.13 9.45 8.95 13