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Pension and Other Postretirement Benefits (Tables)
9 Months Ended
Sep. 30, 2020
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs [Table Text Block] The components of net periodic pension and retiree medical cost were as follows (in millions):
 Three Months Ended
September 30,
Nine Months Ended
September 30,
April 11 - September 30,
2020201920202019
Service cost (1)
$.7 $.5 $2.0 $1.0 
Interest cost (2)
6.6 7.7 19.5 13.9 
Expected return on plan assets (2)
(9.6)(9.4)(28.6)(17.6)
Net periodic pension and retiree medical cost (income)$(2.3)$(1.2)$(7.1)$(2.7)

(1)Included in contract drilling and general and administrative expense in our Condensed Consolidated Statements of Operations.

(2)Included in other, net, in our condensed consolidated statements of operations.