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Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts
Norfolk Southern Corporation and Subsidiaries
Valuation and Qualifying Accounts
Years ended December 31, 2021, 2020, and 2019
($ in millions)
 
  Additions charged to:    
Beginning
Balance		Expenses
Other
Accounts 
DeductionsEnding
Balance
Year ended December 31, 2021
Current portion of casualty and
 
other claims included in
accounts payable$182 $20 $80 
(2)
$116 
(3)
$166 
Casualty and other claims
included in other liabilities169 77 
(1)
— 76 
(4)
170 
Year ended December 31, 2020
Current portion of casualty and
 
other claims included in
 
accounts payable$212 $27 $81 
(2)
$138 
(3)
$182 
Casualty and other claims
included in other liabilities171 80 
(1)
— 82 
(4)
169 
Year ended December 31, 2019
Current portion of casualty and
 
other claims included in
 
accounts payable$213 $22 $131 
(2)
$154 
(3)
$212 
Casualty and other claims
included in other liabilities158 89 
(1)
— 76 
(4)
171 
 
(1)Includes adjustments for changes in estimates for prior years’ claims.
(2)Includes revenue refunds and overcharges provided through deductions from operating revenues and transfers  
from other accounts.
(3)Payments and reclassifications to/from accounts payable.
(4)Payments and reclassifications to/from other liabilities.