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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Schedule of Computation of Basic and Diluted Earnings per Share | The following table sets forth the computation of basic earnings per share and earnings per share, assuming dilution:
| Fiscal Years
| 2018 |  | 2017 |  | 2016
Numerator (Dollars in Millions): |  |  |
Net Earnings | $ | 3,309 |  |  | $ | 5,471 |  |  | $ | 1,714 |
Dividend Equivalents on Restricted Stock | (1 | ) |  | (1 | ) |  | (1 | )
Net Earnings, Attributable to Common Shareholders | $ | 3,308 |  |  | $ | 5,470 |  |  | $ | 1,713 |
Denominator (Units in Millions): |  |  |  |  |
Average Common Shares Outstanding | 857 |  |  | 911 |  |  | 947 |
Other Potentially Dilutive Common Shares | 4 |  |  | 3 |  |  | 1 |
Average Common Shares Outstanding, Assuming Dilution | 861 |  |  | 914 |  |  | 948 |
Net Earnings Per Share, Basic | $ | 3.86 |  |  | $ | 6.01 |  |  | $ | 1.81 |
Net Earnings Per Share, Assuming Dilution | $ | 3.84 |  |  | $ | 5.99 |  |  | $ | 1.81 |
Schedule of Share Repurchases | During 2018, 2017, and 2016, CSX repurchased the following shares:
| Fiscal Years
| 2018 |  | 2017 |  | 2016
Shares Repurchased (Units in Millions) | 72 |  |  | 39 |  |  | 38 |
Cost of Shares (Dollars in Millions) | $ | 4,671 |  |  | $ | 1,970 |  |  | $ | 1,056 |
Average Price Paid per Share | $ | 64.64 |  |  | $ | 50.80 |  |  | $ | 27.52 |

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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 treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 + Details
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