| Schedule of Quarterly Financial Information [Table Text Block] |
| | | | | | | | | | | | | | | | | | 2014 | | Fourth | | Third | | Second | | First | Revenue | | $ | 5,121.3 |
| | $ | 4,875.6 |
| | $ | 4,935.6 |
| | $ | 4,683.1 |
| Cost of sales | | 1,253.1 |
| | 1,267.0 |
| | 1,189.7 |
| | 1,222.7 |
| Operating expenses(1) | | 2,985.6 |
| | 2,915.3 |
| | 2,859.3 |
| | 2,594.2 |
| Acquired IPR&D | | 105.2 |
| | 95.0 |
| | — |
| | — |
| Asset impairment, restructuring, and other special charges | | 401.0 |
| | 36.3 |
| | — |
| | 31.4 |
| Other—net, (income) expense | | (137.2 | ) | | (93.5 | ) | | (53.8 | ) | | (56.0 | ) | Income before income taxes | | 513.6 |
| | 655.5 |
| | 940.4 |
| | 890.8 |
| Net income | | 428.5 |
| | 500.6 |
| | 733.5 |
| | 727.9 |
| Earnings per share—basic | | 0.40 |
| | 0.47 |
| | 0.68 |
| | 0.68 |
| Earnings per share—diluted | | 0.40 |
| | 0.47 |
| | 0.68 |
| | 0.68 |
| Dividends paid per share | | 0.49 |
| | 0.49 |
| | 0.49 |
| | 0.49 |
| Common stock closing prices: | | | | | | | | | High | | 72.83 |
| | 66.59 |
| | 63.10 |
| | 59.85 |
| Low | | 61.90 |
| | 60.35 |
| | 58.21 |
| | 50.73 |
| | | | | | | | | | 2013 | | Fourth | | Third | | Second | | First | Revenue | | $ | 5,808.8 |
| | $ | 5,772.6 |
| | $ | 5,929.7 |
| | $ | 5,602.0 |
| Cost of sales | | 1,386.5 |
| | 1,198.1 |
| | 1,165.2 |
| | 1,158.3 |
| Operating expenses(1) | | 3,429.0 |
| | 3,029.8 |
| | 3,198.0 |
| | 3,000.1 |
| Acquired IPR&D | | 57.1 |
| | — |
| | — |
| | — |
| Asset impairment, restructuring, and other special charges | | 35.4 |
| | — |
| | 63.5 |
| | 21.7 |
| Other—net, (income) expense | | (9.1 | ) | | 31.3 |
| | (11.9 | ) | | (529.2 | ) | Income before income taxes | | 909.9 |
| | 1,513.4 |
| | 1,514.9 |
| | 1,951.1 |
| Net income | | 727.5 |
| | 1,203.1 |
| | 1,206.2 |
| | 1,548.0 |
| Earnings per share—basic | | 0.68 |
| | 1.11 |
| | 1.12 |
| | 1.42 |
| Earnings per share—diluted | | 0.67 |
| | 1.11 |
| | 1.11 |
| | 1.42 |
| Dividends paid per share | | 0.49 |
| | 0.49 |
| | 0.49 |
| | 0.49 |
| Common stock closing prices: | | | | | | | | | High | | 51.34 |
| | 54.96 |
| | 58.33 |
| | 56.79 |
| Low | | 47.65 |
| | 49.92 |
| | 49.06 |
| | 49.51 |
|
1 Includes research and development, marketing, selling, and administrative expenses |