XML 48 R32.htm IDEA: XBRL DOCUMENT v3.7.0.1
Share-Based Compensation - Narrative (Details)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 06, 2017
USD ($)
employee
$ / shares
shares
Feb. 22, 2017
$ / shares
shares
Mar. 31, 2017
$ / shares
shares
Mar. 25, 2016
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options granted (in shares)   1,300,000    
Fair value of stock options (in dollars per share) | $ / shares   $ 12.54 $ 12.83 $ 4.68
Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period (in years)   3 years    
Employee Stock Option        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period (in years)   3 years    
Term of stock options (in years)   10 years    
2016 - 2018 LTIP        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of payout subject to downward adjustment (up to)     30.00%  
2016 - 2018 LTIP | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Payout range for participants (as a percent)     0.00%  
2016 - 2018 LTIP | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Payout range for participants (as a percent)     200.00%  
2016 - 2018 LTIP | Performance Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Awards granted (in shares)   600,000    
Percentage of grants with performance vesting, operating ratio     50.00%  
Percentage of grants with performance vesting, return on assets     50.00%  
Performance unit equivalent of CSX common stock (in shares)     1  
2016 - 2018 LTIP | Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Awards granted (in shares)   300,000    
Equity Award Modifications        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of employees impacted (employees) | employee 58      
Share-based compensation expense revaluation of awards | $ $ 12      
Chief Executive Officer        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options granted (in shares) 9,000,000      
Fair value of stock options (in dollars per share) | $ / shares $ 12.88      
Chief Executive Officer | Share-based Compensation Award, Tranche One        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of vesting options (in shares) 4,500,000      
Award vesting period (in years) 4 years      
Chief Executive Officer | Share-based Compensation Award, Tranche Two        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of vesting options (in shares) 4,500,000      
Award vesting period (in years) 4 years