Represents the costs associated with early redemption of senior notes and the refinance of senior credit facilities.

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Represents the maximum level within which the entity is required to maintain its leverage ratio under the covenants of the credit agreement.

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Net total of debt issuance costs, debt discount (premium) and other long term debt not elsewhere specified.

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Represents the amount of debt refinancing and other costs in hedging of interest rate risk.

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Represents the amount of individually insignificant items relating to debt refinancing and other costs.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of principal amount of debt redeemed.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Represents the charge against earnings during the period for commitment fees and debt issuance expenses.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash outflow from the repayments of a long-term debt originally issued by another party but is assumed by the entity.

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Debt and Interest Costs (Details) € in Millions, $ in Millions, £ in Billions		1 Months Ended			2 Months Ended	3 Months Ended		9 Months Ended
	Feb. 19, 2015 USD ($)	Mar. 31, 2016 EUR (€)	Mar. 31, 2015	Feb. 28, 2015 USD ($)	Aug. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2016 USD ($)	Dec. 31, 2015 GBP (£)	Dec. 31, 2015 EUR (€)	Dec. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	May 31, 2015 USD ($)	Feb. 28, 2015 GBP (£)	Feb. 28, 2015 USD ($)
Long-term debt
Long-term debt, Total						$ 7,803.0		$ 7,803.0							$ 5,028.0
Less: Current portion of long-term debt						(79.0)		(79.0)							(54.0)
Long-term debt excluding current maturities						$ 7,724.0		$ 7,724.0							4,974.0
Leverage ratio, maximum						5.50		5.50
Debt Refinancing and Other Costs: (Abstract)
Interest expense						$ (80.0)	$ (38.0)	$ (159.0)	$ (107.0)
Economic hedge - interest rate risk							(15.0)	(20.0)	(10.0)
Individually insignificant items						(2.0)		(2.0)
Debt refinancing and other costs						(2.0)	(21.0)	(108.0)	(86.0)
Fees paid to lenders								32.0
Fair value of the long-term debt						$ 8,200.0		$ 8,200.0							5,200.0
Forecast
Long-term debt
Leverage ratio, maximum										4.00	5.00
5.25% Senior Notes, due July 2025
Long-term debt
Long-term debt, Total																$ 1,000.0
Interest rate (as a percent)						5.25%		5.25%								5.25%
4.375% Senior Notes, due December 2020
Long-term debt
Long-term debt, Total															$ 1,000.0
Interest rate (as a percent)						4.375%		4.375%					4.375%	4.375%	4.375%
4.00% Senior Notes, due November 2023
Long-term debt
Interest rate (as a percent)						4.00%		4.00%
4.375% Senior Notes, euro denominated, due December 2023
Long-term debt
Long-term debt, Total \| €														€ 700
Interest rate (as a percent)						4.375%		4.375%					4.375%	4.375%	4.375%
5.00% Senior Notes, due March 2022
Long-term debt
Interest rate (as a percent)						5.00%		5.00%
3.50% Senior Notes, euro denominated, due December 2020
Long-term debt
Long-term debt, Total \| €														€ 400
Interest rate (as a percent)						3.50%		3.50%					3.50%	3.50%	3.50%
Term A Loan, due March 2021
Debt Refinancing and Other Costs: (Abstract)
Maturity term		5 years
Term A Loan, Euro denominated, due March 2021
Debt Refinancing and Other Costs: (Abstract)
Maturity term		5 years
Term C Loan
Debt Refinancing and Other Costs: (Abstract)
Repayment of debt's obligation and settlement of outstanding derivatives	$ 93.0			$ 93.0
Latapack-Ball Notes Payable, denominated in various currencies (2015 - 4.35%)
Long-term debt
Debt instrument, interest rate (as a percent)													4.35%	4.35%	4.35%
Rexam Long Term Debt Assumed (Member) \| Rexam
Debt Refinancing and Other Costs: (Abstract)
Assumed debt extinguished					$ 2,700.0
Other (including debt issuance costs)
Long-term debt
Other (including debt issuance costs)						$ (47.0)		$ (47.0)							$ (85.0)
Committed multi-currency revolving credit facilities
Long-term debt
Available borrowing capacity under line of credit facility						1,200.0		1,200.0
Short-term uncommitted credit facilities
Long-term debt
Available borrowing capacity under line of credit facility						502.0		502.0
Amount of credit facility outstanding and due on demand						294.0		294.0							23.0
6.75% and 5.75% senior notes
Debt Refinancing and Other Costs: (Abstract)
Redemption of 6.75% and 5.75% senior notes, due September 2020 and May 2021, respectively, and refinance of senior credit facilities									(58.0)
3.5% and 4.375% senior notes
Debt Refinancing and Other Costs: (Abstract)
Interest expense								(49.0)
6.75% Senior Notes, due September 2020
Long-term debt
Interest rate (as a percent)			6.75%
Debt Refinancing and Other Costs: (Abstract)
Redemption price of senior notes (as a percent)			103.375%
5.75% Senior Notes, due May 2021
Long-term debt
Interest rate (as a percent)			5.75%
Debt Refinancing and Other Costs: (Abstract)
Redemption price of senior notes (as a percent)			106.096%
Bridge and Revolving Credit Facilities
Debt Refinancing and Other Costs: (Abstract)
Refinance of bridge and revolving credit facilities								(30.0)	(5.0)
Loans Payable \| Term A Loan, due March 2021
Long-term debt
Long-term Debt, Gross						1,400.0		1,400.0
Loans Payable \| Term A Loan, Euro denominated, due March 2021
Long-term debt
Long-term Debt, Gross						1,174.0		1,174.0
Notes Payable \| Latapack-Ball Notes Payable, denominated in various currencies (2015 - 4.35%)
Long-term debt
Long-term Debt, Gross															168.0
Bridge Loan \| Bridge Facility
Debt Refinancing and Other Costs: (Abstract)
Amortization of unsecured, committed bridge facility financing fees							$ (6.0)	(7.0)	$ (13.0)
Face amount of debt \| £													£ 1.9					£ 3.3
Revolving credit facilities
Debt Refinancing and Other Costs: (Abstract)
Face amount of debt																			$ 1,000.0
Revolving credit facilities \| Term A Loan, due March 2021
Debt Refinancing and Other Costs: (Abstract)
Face amount of debt												$ 1,400.0
Maturity term		5 years
Revolving credit facilities \| Term A Loan, Euro denominated, due March 2021
Debt Refinancing and Other Costs: (Abstract)
Face amount of debt \| €		€ 1,100
Maturity term		5 years
Revolving credit facilities \| Multi-currency usd revolver, due March 2021 at variable rate
Long-term debt
Long-term Debt, Gross						290.0		290.0
Maximum borrowing capacity of revolving credit facility												$ 1,500.0
Revolving credit facilities \| Revolver 2018
Long-term debt
Maximum borrowing capacity of revolving credit facility																$ 2,250.0	$ 3,000.0
Revolving credit facilities \| Revolver 2018 \| Minimum \| LIBOR
Debt Refinancing and Other Costs: (Abstract)
Spread (as a percent)				1.25%
Revolving credit facilities \| Revolver 2018 \| Maximum \| LIBOR
Debt Refinancing and Other Costs: (Abstract)
Spread (as a percent)				1.75%
Senior Notes \| 5.25% Senior Notes, due July 2025
Long-term debt
Long-term Debt, Gross						1,000.0		1,000.0							1,000.0
Senior Notes \| 4.375% Senior Notes, due December 2020
Long-term debt
Long-term Debt, Gross						1,000.0		1,000.0							1,000.0
Senior Notes \| 4.00% Senior Notes, due November 2023
Long-term debt
Long-term Debt, Gross						1,000.0		1,000.0							1,000.0
Senior Notes \| 4.375% Senior Notes, euro denominated, due December 2023
Long-term debt
Long-term Debt, Gross						787.0		787.0							760.0
Senior Notes \| 5.00% Senior Notes, due March 2022
Long-term debt
Long-term Debt, Gross						750.0		750.0							750.0
Senior Notes \| 3.50% Senior Notes, euro denominated, due December 2020
Long-term debt
Long-term Debt, Gross						$ 449.0		$ 449.0							$ 435.0