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Stock Plans and Share-Based Compensation - Narrative (Details) - LTIP | 3 Months Ended
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Mar. 31, 2023 shares
Performance Units |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of grants with performance vesting, average annual operating income growth | 0.50
Percentage of grants with performance vesting, cumulative free cash flow | 50.00%
Performance Units | Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Payout percentage range for participants | 0.00%
Performance Units | Maximum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Payout percentage range for participants | 200.00%
Performance Units | Certain Executive Officers |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of payout subject to upward or downward adjustment (up to) | 0.25
Performance Units | Certain Executive Officers | Maximum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Payout percentage range for participants | 250.00%
Stock Options |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Term of stock options (in years) | 10 years
Award vesting period (in years) | 3 years
Restricted Stock Units |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Award vesting period (in years) | 3 years
Number of equivalent shares of CSX common stock per unit of award (in shares) | 1

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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