ACQUISITION OF AK STEEL - Assets and Liabilities Assumed (Details) - USD ($) $ in Millions |
3 Months Ended |
6 Months Ended |
9 Months Ended |
|
|
Sep. 30, 2020 |
Sep. 30, 2020 |
Sep. 30, 2020 |
Mar. 31, 2020 |
Dec. 31, 2019 |
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Goodwill |
$ 144.0
|
$ 144.0
|
$ 144.0
|
Ìý
|
$ 2.1
|
AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
39.7
|
39.7
|
39.7
|
$ 37.7
|
Ìý
|
Accounts receivable |
662.9
|
662.9
|
662.9
|
666.0
|
Ìý
|
Inventories |
1,523.0
|
1,523.0
|
1,523.0
|
1,562.8
|
Ìý
|
Other current assets |
52.1
|
52.1
|
52.1
|
67.5
|
Ìý
|
Property, plant and equipment |
2,164.3
|
2,164.3
|
2,164.3
|
2,184.4
|
Ìý
|
Intangible assets |
148.0
|
148.0
|
148.0
|
163.0
|
Ìý
|
Right of use asset, operating leases |
209.6
|
209.6
|
209.6
|
225.9
|
Ìý
|
Other non-current assets |
112.1
|
112.1
|
112.1
|
85.9
|
Ìý
|
Accounts payable |
(642.4)
|
(642.4)
|
(642.4)
|
(636.3)
|
Ìý
|
Accrued liabilities |
(222.4)
|
(222.4)
|
(222.4)
|
(222.5)
|
Ìý
|
Other current liabilities |
(175.2)
|
(175.2)
|
(175.2)
|
(181.8)
|
Ìý
|
Long-term debt |
(1,179.4)
|
(1,179.4)
|
(1,179.4)
|
(1,179.4)
|
Ìý
|
Deferred income taxes |
(19.9)
|
(19.9)
|
(19.9)
|
(19.7)
|
Ìý
|
Operating lease liability, non-current |
(175.4)
|
(175.4)
|
(175.4)
|
(188.1)
|
Ìý
|
Intangible liabilities |
(70.5)
|
(70.5)
|
(70.5)
|
(140.0)
|
Ìý
|
Pension and OPEB liabilities |
(870.9)
|
(870.9)
|
(870.9)
|
(873.0)
|
Ìý
|
Asset retirement obligations |
(15.9)
|
(15.9)
|
(15.9)
|
(13.9)
|
Ìý
|
Other non-current liabilities |
(146.5)
|
(146.5)
|
(146.5)
|
(144.2)
|
Ìý
|
Net identifiable assets acquired |
1,393.2
|
1,393.2
|
1,393.2
|
1,394.3
|
Ìý
|
Goodwill |
141.9
|
141.9
|
141.9
|
141.2
|
Ìý
|
Total net assets acquired |
1,535.1
|
1,535.1
|
1,535.1
|
$ 1,535.5
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Net Identifiable Assets |
Ìý
|
(1.1)
|
Ìý
|
Ìý
|
Ìý
|
Goodwill, Purchase Accounting Adjustments |
Ìý
|
0.7
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred |
Ìý
|
(0.4)
|
Ìý
|
Ìý
|
Ìý
|
Cash and Cash Equivalents [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets |
Ìý
|
2.0
|
Ìý
|
Ìý
|
Ìý
|
Accounts Receivable [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets |
Ìý
|
(3.1)
|
Ìý
|
Ìý
|
Ìý
|
Inventories [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory |
Ìý
|
(39.8)
|
Ìý
|
Ìý
|
Ìý
|
Other Current Assets [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets |
Ìý
|
(15.4)
|
Ìý
|
Ìý
|
Ìý
|
Property, Plant and Equipment [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment |
Ìý
|
(20.1)
|
Ìý
|
Ìý
|
Ìý
|
Finite-Lived Intangible Assets [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles |
Ìý
|
(15.0)
|
Ìý
|
Ìý
|
Ìý
|
Right-of-use asset, operating lease [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets |
Ìý
|
(16.3)
|
Ìý
|
Ìý
|
Ìý
|
Other Noncurrent Assets [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets |
Ìý
|
26.2
|
Ìý
|
Ìý
|
Ìý
|
Accounts Payable [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities |
Ìý
|
(6.1)
|
Ìý
|
Ìý
|
Ìý
|
Accrued Liabilities [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities |
Ìý
|
0.1
|
Ìý
|
Ìý
|
Ìý
|
Other Current Liabilities [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities |
Ìý
|
6.6
|
Ìý
|
Ìý
|
Ìý
|
Long-term Debt [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities |
Ìý
|
0.0
|
Ìý
|
Ìý
|
Ìý
|
Deferred income taxes [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities |
Ìý
|
(0.2)
|
Ìý
|
Ìý
|
Ìý
|
Operating lease liability, non-current [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities |
Ìý
|
12.7
|
Ìý
|
Ìý
|
Ìý
|
Intangible liabilities [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles |
Ìý
|
69.5
|
Ìý
|
Ìý
|
Ìý
|
Pension and OPEB liabilities [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities |
Ìý
|
2.1
|
Ìý
|
Ìý
|
Ìý
|
Asset Retirement Obligation [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities |
Ìý
|
(2.0)
|
Ìý
|
Ìý
|
Ìý
|
Other Noncurrent Liabilities [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities |
Ìý
|
$ (2.3)
|
Ìý
|
Ìý
|
Ìý
|
Cost of Sales [Member] | AK Steel Holding Corporation [Member] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Acquisition [Line Items] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments Related to Previous Period |
$ 0.2
|
Ìý
|
$ 8.0
|
Ìý
|
Ìý
|