Restructuring (Details) $ in Millions | 3 Months Ended | 10 Months Ended | 12 Months Ended | 23 Months Ended |
Mar. 31, 2018USD ($) | Jun. 30, 2017 | Mar. 31, 2018USD ($) | Dec. 31, 2017USD ($) | Dec. 31, 2016USD ($) | Mar. 31, 2018USD ($) |
2016 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost Number of Planned Closure Facilities | 4 | | | | | |
Restructuring and Related Cost Number of Facilities Closed | 4 | | | | | |
Restructuring Charges | $ 0.8 | | | $ 8.2 | $ 21.6 | $ 30.6 |
Restructuring and Related Cost, Expected Cost Remaining | 1.1 | | $ 1.1 | | | 1.1 |
Restructuring Reserve Settled | (1) | | | | | |
Restructuring Reserve, Translation and Other Adjustment | (0.2) | | | | | |
Restructuring Reserve | 5.1 | | 5.1 | 5.5 | | 5.1 |
Payments for Restructuring | 1 | | | 15.4 | 8.3 | |
Restructuring and Related Cost, Expected Cost | 31.7 | | 31.7 | | | 31.7 |
Expected Cash Payments for Plant Closure | $ 1.7 | | | | | |
2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost Number of Planned Closure Facilities | | 4 | | | | |
Restructuring and Related Cost, Expected Number of Positions Eliminated | | 500 | | | | |
Restructuring and Related Cost Number of Facilities Closed | 2 | | | | | |
Restructuring Charges | $ 4.4 | | 43.5 | 39.1 | | |
Restructuring and Related Cost, Expected Cost Remaining | 22.1 | | 22.1 | | | 22.1 |
Restructuring Reserve Settled | (6.2) | | | | | |
Restructuring Reserve, Translation and Other Adjustment | (0.1) | | | | | |
Restructuring Reserve | 19.8 | | 19.8 | 21.7 | | 19.8 |
Payments for Restructuring | 3.7 | | | 6.8 | | |
Restructuring and Related Cost, Expected Cost | 65.6 | | 65.6 | | | 65.6 |
Employee Related Costs [Member] | 2016 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | (0.1) | | | | | |
Restructuring Reserve Settled | (0.2) | | | | | |
Restructuring Reserve, Translation and Other Adjustment | (0.2) | | | | | |
Restructuring Reserve | 0.6 | | 0.6 | 1.1 | | 0.6 |
Restructuring and Related Cost, Expected Cost | 13 | | 13 | | | 13 |
Employee Related Costs [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | 1.2 | | | | | |
Restructuring Reserve Settled | (3.4) | | | | | |
Restructuring Reserve, Translation and Other Adjustment | (0.1) | | | | | |
Restructuring Reserve | 16.9 | | 16.9 | 19.2 | | 16.9 |
Fixed Asset Related Expenses [Member] | 2016 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost, Expected Cost | 2 | | 2 | | | 2 |
Fixed Asset Related Expenses [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | 2.5 | | | | | |
Restructuring Reserve Settled | (2.5) | | | | | |
Restructuring Reserve, Translation and Other Adjustment | 0 | | | | | |
Restructuring Reserve | 0 | | 0 | 0 | | 0 |
Other Costs [Member] | 2016 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | 0.9 | | | | | |
Restructuring Reserve Settled | (0.8) | | | | | |
Restructuring Reserve, Translation and Other Adjustment | 0 | | | | | |
Restructuring Reserve | 4.5 | | 4.5 | 4.4 | | 4.5 |
Restructuring and Related Cost, Expected Cost | 17 | | 17 | | | 17 |
Other Costs [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | 0.7 | | | | | |
Restructuring Reserve Settled | (0.3) | | | | | |
Restructuring Reserve, Translation and Other Adjustment | 0 | | | | | |
Restructuring Reserve | 2.9 | | 2.9 | 2.5 | | 2.9 |
USPackaging [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | 2 | | 15.4 | 13.4 | | |
Restructuring and Related Cost, Expected Cost Remaining | 16.6 | | 16.6 | | | 16.6 |
Restructuring and Related Cost, Expected Cost | 32 | | 32 | | | 32 |
Latin America [Member] | 2016 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | 0.9 | | | 8 | 20.5 | 29.4 |
Restructuring and Related Cost, Expected Cost Remaining | 1.1 | | 1.1 | | | 1.1 |
Restructuring and Related Cost, Expected Cost | 30.5 | | 30.5 | | | 30.5 |
Latin America [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | 1.2 | | 21.9 | 20.7 | | |
Restructuring and Related Cost, Expected Cost Remaining | 4.8 | | 4.8 | | | 4.8 |
Restructuring and Related Cost, Expected Cost | 26.7 | | 26.7 | | | 26.7 |
Rest of World [Member] | 2016 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | (0.1) | | | 0.2 | $ 1.1 | 1.2 |
Restructuring and Related Cost, Expected Cost Remaining | 0 | | 0 | | | 0 |
Restructuring and Related Cost, Expected Cost | 1.2 | | 1.2 | | | 1.2 |
Rest of World [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | 1.1 | | 2.6 | 1.5 | | |
Restructuring and Related Cost, Expected Cost Remaining | 0.4 | | 0.4 | | | 0.4 |
Restructuring and Related Cost, Expected Cost | 3 | | 3 | | | 3 |
Corporate Segment [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring Charges | 0.1 | | 3.6 | $ 3.5 | | |
Restructuring and Related Cost, Expected Cost Remaining | 0.3 | | 0.3 | | | 0.3 |
Restructuring and Related Cost, Expected Cost | 3.9 | | 3.9 | | | 3.9 |
Minimum [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost, Expected Cost | 65 | | 65 | | | 65 |
Minimum [Member] | Employee Related Costs [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost, Expected Cost | 29 | | 29 | | | 29 |
Minimum [Member] | Fixed Asset Related Expenses [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost, Expected Cost | 19 | | 19 | | | 19 |
Minimum [Member] | Other Costs [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost, Expected Cost | 17 | | 17 | | | 17 |
Maximum [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost, Expected Cost | 70 | | 70 | | | 70 |
Maximum [Member] | Employee Related Costs [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost, Expected Cost | 31 | | 31 | | | 31 |
Maximum [Member] | Fixed Asset Related Expenses [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost, Expected Cost | 20 | | 20 | | | 20 |
Maximum [Member] | Other Costs [Member] | 2017 Restructuring Program [Member] | | | | | | |
Restructuring Reserve Disclosures [Line Items] | | | | | | |
Restructuring and Related Cost, Expected Cost | $ 19 | | $ 19 | | | $ 19 |