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Accounts Payable and Accrued Expenses
12 Months Ended
Dec. 31, 2019
Payables and Accruals [Abstract]  
Accounts Payable and Accrued Expenses
Accounts Payable and Accrued Expenses
Accounts payable and accrued expenses consisted of the following:
 
December 31,
 
2019
 
2018
 
(Dollars in millions)
Trade accounts payable
$
254.8

 
$
281.7

Accrued payroll and related benefits
186.2

 
209.3

Other accrued expenses
118.5

 
184.9

Accrued taxes other than income
99.0

 
111.4

Asset retirement obligations
98.2

 
63.8

Accrued royalties
61.7

 
52.7

Liabilities associated with discontinued operations
58.8

 
54.0

Operating lease liabilities
29.6

 

Accrued health care insurance
15.8

 
10.0

Accrued interest
15.0

 
15.7

Workers’ compensation obligations
8.4

 
7.0

Intangible take-or-pay contracts
8.4

 
20.3

Income taxes payable
2.6

 
10.0

Liabilities from coal trading activities

 
1.2

Accounts payable and accrued expenses
$
957.0

 
$
1,022.0