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Summary of Quarterly Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2020
Quarterly Financial Data [Abstract] |
Summary of Quarterly Data |
2020 Quarters | Mar 31 | Jun 30 | Sep 30 | Dec 31
Net sales | $ | 3,588 |  | $ | 2,764 |  | $ | 3,737 |  | $ | 4,262 |
Gross profit | 2,331 |  | 1,548 |  | 2,461 |  | 2,717 |
Earnings (loss) before income taxes | 590 |  | (87) |  | 780 |  | 671 |
Net earnings (loss) | 493 |  | (83) |  | 621 |  | 568 |
Net earnings (loss) per share of common stock: |  |
Basic | $ | 1.32 |  | $ | (0.22) |  | $ | 1.66 |  | $ | 1.51 |
Diluted | $ | 1.30 |  | $ | (0.22) |  | $ | 1.63 |  | $ | 1.49 |
Dividends declared per share of common stock | $ | 0.575 |  | $ | 0.575 |  | $ | 0.575 |  | $ | 0.63 |
2019 Quarters | Mar 31 | Jun 30 | Sep 30 | Dec 31
Net sales | $ | 3,516 |  | $ | 3,650 |  | $ | 3,587 |  | $ | 4,131 |
Gross profit | 2,283 |  | 2,380 |  | 2,330 |  | 2,703 |
Earnings before income taxes | 480 |  | 565 |  | 581 |  | 936 |
Net earnings | 412 |  | 480 |  | 466 |  | 725 |
Net earnings per share of common stock: |  |
Basic | $ | 1.10 |  | $ | 1.29 |  | $ | 1.24 |  | $ | 1.94 |
Diluted | $ | 1.09 |  | $ | 1.26 |  | $ | 1.23 |  | $ | 1.90 |
Dividends declared per share of common stock | $ | 0.52 |  | $ | 0.52 |  | $ | 0.52 |  | $ | 0.575 |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121640914&loc=d3e1280-108306 + Details
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