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Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions | Total | Common Stock [Member] | Treasury Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Parent [Member] | Noncontrolling Interest [Member]
--- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2014 | $ 1,854.9 | $ 288.7 | $ (493.1) | $ 739.0 | $ 2,111.2 | $ (794.4) | $ 1,851.4 | $ 3.5
Comprehensive income | 310.6 |  |  |  | 350.0 | (39.4) | 310.6 |
Cash dividends on common stock | (206.3) |  |  |  | (206.3) |  | (206.3) |
Stock-based compensation and other | 47.6 | 3.3 | (30.0) | 74.2 | 0.1 |  | 47.6 |
Common stock purchased and retired | (180.4) | (4.5) |  | (11.8) | (164.1) |  | (180.4) |
Ending balance at Dec. 31, 2015 | 1,826.4 | 287.5 | (523.1) | 801.4 | 2,090.9 | (833.8) | 1,822.9 | 3.5
Comprehensive income | 316.8 |  |  |  | 527.8 | (211.0) | 316.8 |
Cash dividends on common stock | (328.6) |  |  |  | (328.6) |  | (328.6) |
Stock-based compensation and other | 89.5 | 3.4 | (22.2) | 76.4 | (0.2) |  | 57.4 | 32.1
Common stock purchased and retired | 9,480.3 | 213.9 |  | 9,266.4 |  |  | 9,480.3 |
Ending balance at Dec. 31, 2016 | 11,384.4 | 504.8 | (545.3) | 10,144.2 | 2,289.9 | (1,044.8) | 11,348.8 | 35.6
Comprehensive income | 3,030.5 |  |  |  | 2,748.8 | 281.7 | 3,030.5 |
Cash dividends on common stock | (427.5) |  |  |  | (427.5) |  | (427.5) |
Stock-based compensation and other | 346.3 | 8.3 | (28.2) | 365.2 |  |  | 345.3 | 1.0
Common stock purchased and retired | (152.4) | (5.0) |  | (147.4) |  |  | (152.4) |
Ending balance at Dec. 31, 2017 | $ 14,181.3 | $ 508.1 | $ (573.5) | $ 10,362.0 | $ 4,611.2 | $ (763.1) | $ 14,144.7 | $ 36.6

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e557-108580 + Details
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