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Summary of Significant Accounting Policies Schedule of New Accounting Pronouncements and Changes in Accounting Principles (Tables) | 12 Months Ended
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Dec. 31, 2018
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Abstract] |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] |
(In millions) |  | Balance at December 31, 2017 |  | Adjustments due to ASC 606 |  | Balance at January 1, 2018
Inventories, net |  | $ | 766.3 |  |  | $ | (7.4 | ) |  | $ | 758.9 |
Prepayments and other current assets (including contract assets) |  | $ | 145.4 |  |  | $ | 9.4 |  |  | $ | 154.8 |
Accounts payable and other accrued expenses (including contract liabilities) |  | $ | 2,270.3 |  |  | $ | 0.1 |  |  | $ | 2,270.4 |
Retained earnings |  | $ | 4,531.0 |  |  | $ | 1.9 |  |  | $ | 4,532.9 |

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109236672&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22580-107794 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109236672&loc=d3e725-108305 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 + Details
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