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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2018
Accounting Policies [Abstract] |
Schedule of Computation of Basic and Diluted Earnings Per Share | The table below presents the computation of basic and diluted earnings per share (in millions, except for per share information):
| Years Ended December 31,
| 2018 |  | 2017 |  | 2016
Basic: |  |  |  |  |  |  |  |
Net income | $ | 722.2 |  |  | $ | 583.6 |  |  | $ | 569.5 |
Weighted-average shares outstanding | 209.2 |  |  | 210.9 |  |  | 213.0 |
Basic earnings per share | $ | 3.45 |  |  | $ | 2.77 |  |  | $ | 2.67 |
Diluted: |  |  |  |  |  |  |  |
Net income | $ | 722.2 |  |  | $ | 583.6 |  |  | $ | 569.5 |
Weighted-average shares outstanding | 209.2 |  |  | 210.9 |  |  | 213.0 |
Dilutive effect of stock plans | 4.4 |  |  | 5.0 |  |  | 4.8 |
Dilutive weighted-average shares outstanding | 213.6 |  |  | 215.9 |  |  | 217.8 |
Diluted earnings per share | $ | 3.38 |  |  | $ | 2.70 |  |  | $ | 2.61 |
Schedule of Stock-Based Compensation Expense | Total stock-based compensation expense was as follows (in millions):
| Years Ended December 31,
| 2018 |  | 2017 |  | 2016
Cost of sales | $ | 11.4 |  |  | $ | 9.2 |  |  | $ | 8.4 |
Selling, general, and administrative expenses | 46.3 |  |  | 40.7 |  |  | 38.0 |
Research and development expenses | 13.3 |  |  | 11.7 |  |  | 10.5 |
Total stock-based compensation expense | $ | 71.0 |  |  | $ | 61.6 |  |  | $ | 56.9 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 + Details
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