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Emergence from the Chapter 11 Cases and Fresh Start Reporting - Reorganization Items, Net (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Apr. 01, 2017 | Apr. 01, 2017 | Jun. 30, 2016 | Jun. 30, 2016
Fresh-Start Adjustment [Line Items] |  |  |  |
Gain on settlement of claims (per above) | $ (3,031.2) |  |  |
Professional fees | 336.4 |  |  |
Income Tax Effect Related to Predecessor Deferred Tax Liabilities |  |  |  |
Fresh-Start Adjustment [Line Items] |  |  |  |
Fresh start income tax adjustments, net | (177.8) |  |  |
Income Tax Effect Related to AOCI |  |  |  |
Fresh-Start Adjustment [Line Items] |  |  |  |
Fresh start income tax adjustments, net | (81.5) |  |  |
Income Tax Effect Related to Unrecognized Tax Benefits |  |  |  |
Fresh-Start Adjustment [Line Items] |  |  |  |
Fresh start income tax adjustments, net | (6.7) |  |  |
Income Tax Effect Related to Predecessor Deferred Tax Assets of Discontinued Operations |  |  |  |
Fresh-Start Adjustment [Line Items] |  |  |  |
Fresh start income tax adjustments, net | 12.1 |  |  |
Predecessor |  |  |  |
Fresh-Start Adjustment [Line Items] |  |  |  |
Gain on settlement of claims (per above) | (3,031.2) | $ (3,031.2) | $ 0.0 | $ 0.0
Fresh start adjustments, net (per above) | 3,363.1 | 3,363.1 | 0.0 | 0.0
Fresh start income tax adjustments, net | (253.9) | (253.9) | 0.0 | 0.0
Loss on termination of derivative contracts | 0.0 | 0.0 | 75.2 | 75.2
Professional fees | 0.0 | 42.5 | 21.6 | 21.6
Accounts payable settlement gains | 0.0 | (0.7) | (0.2) | (0.2)
Interest income | 0.0 | (0.4) | (0.2) | (0.2)
Other | 0.0 | 0.0 | (1.0) | (1.0)
Reorganization items, net | 585.8 | 627.2 | 95.4 | 95.4
Cash paid for Reorganization items, net | $ 14.4 | $ 45.8 | $ 0.0 | $ 0.0

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- Definition Amount of net gain (loss) on settlement of other claims for entities in bankruptcy, reported as a reorganization item. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=64805424&loc=d3e55730-112764 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56145-112766 + Details
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