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Shareholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2019
Stockholders' Equity Note [Abstract] |
Summary of shareholders' equity activity | The following tables summarize our shareholders’ equity activity for the three months ended March 31, 2019 and March 31, 2018, respectively:
Millions of dollars | Common Shares | Paid-in Capital in Excess of Par Value | Treasury Stock | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Noncontrolling Interest in Consolidated Subsidiaries | Total
Balance at December 31, 2018 | $ | 2,671 |  | $ | 211 |  | $ | (6,744 | ) | $ | 13,739 |  | $ | (355 | ) | $ | 22 |  | $ | 9,544 |
Comprehensive income (loss): |  |  |  |  |  |  |  |  |
Net income | — |  | — |  | — |  | 152 |  | — |  | — |  | 152 |
Other comprehensive income | — |  | — |  | — |  | — |  | 1 |  | — |  | 1 |
Cash dividends ($0.18 per share) | — |  | — |  | — |  | (157 | ) | — |  | — |  | (157 | )
Stock plans | — |  | 13 |  | 74 |  | — |  | — |  | — |  | 87 |
Other | — |  | — |  | — |  | — |  | — |  | (2 | ) | (2 | )
Balance at March 31, 2019 | $ | 2,671 |  | $ | 224 |  | $ | (6,670 | ) | $ | 13,734 |  | $ | (354 | ) | $ | 20 |  | $ | 9,625 |
Millions of dollars | Common Shares | Paid-in Capital in Excess of Par Value | Treasury Stock | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Noncontrolling Interest in Consolidated Subsidiaries | Total
Balance at December 31, 2017 | $ | 2,673 |  | $ | 207 |  | $ | (6,757 | ) | $ | 12,668 |  | $ | (469 | ) | $ | 27 |  | $ | 8,349 |
Comprehensive income (loss): |  |  |  |  |  |  |  |
Net Income | — |  | — |  | — |  | 46 |  | — |  | 1 |  | 47 |
Other comprehensive income | — |  | — |  | — |  | — |  | (2 | ) | — |  | (2 | )
Cash dividends ($0.18 per share) | — |  | — |  | — |  | (158 | ) | — |  | — |  | (158 | )
Stock plans | (1 | ) | 15 |  | 113 |  | — |  | — |  | — |  | 127 |
Other | — |  | — |  | — |  | 30 |  | — |  | (2 | ) | 28 |
Balance at March 31, 2018 | $ | 2,672 |  | $ | 222 |  | $ | (6,644 | ) | $ | 12,586 |  | $ | (471 | ) | $ | 26 |  | $ | 8,391 |
Schedule of comprehensive income (loss) | Accumulated other comprehensive loss consisted of the following:
Millions of dollars | March 31, 2019 | December 31, 2018
Defined benefit and other postretirement liability adjustments | $ | (203 | ) | $ | (203 | )
Cumulative translation adjustments | (82 | ) | (82 | )
Other | (69 | ) | (70 | )
Total accumulated other comprehensive loss | $ | (354 | ) | $ | (355 | )

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
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