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Pension and Other Postretirement Benefits (Tables) | 6 Months Ended
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Jun. 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 |  | Six Months Ended |  | April 11 - June 30, 2019
|  | June 30, 2020 |
Service cost (1) |  | $ | .7 |  |  | $ | 1.3 |  |  | $ | .4 |
Interest cost (2) |  | 6.4 |  |  | 12.9 |  |  | 6.5 |
Expected return on plan assets (2) |  | (9.5 | ) |  | (19.0 | ) |  | (8.2 | )
Net periodic pension and retiree medical cost (income) |  | $ | (2.4 | ) |  | $ | (4.8 | ) |  | $ | (1.3 | )
(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.

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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