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Acquisitions - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions				1 Months Ended		3 Months Ended		6 Months Ended
	Jul. 06, 2017	Apr. 03, 2017	Apr. 15, 2016	Jul. 31, 2017	Jan. 31, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Payments to acquire businesses, cash								$ 557.6	$ 8,597.7
Goodwill						$ 10,461.9		10,461.9		$ 10,218.9
Amortization of intangible assets						79.4	$ 59.4	181.0	79.2
Subsequent Event [Member]
Business Acquisition [Line Items]
Share conversion ratio upon merger	86.20%
Business acquisition, equity interest issued or issuable, number of shares	6.6
Issue of common stock to settling petitioners , Value	$ 162.0
Smith Mountain Industries [Member]
Business Acquisition [Line Items]
Payments to acquire businesses, cash					$ 100.0
Jarden Acquisition [Member]
Business Acquisition [Line Items]
Payments to acquire businesses, cash			$ 5,400.0
Share conversion ratio upon merger			86.20%
Business combination, cash consideration transferred per share			$ 21.00
Business combination cash merger consideration payable to dissenting shareholders						$ 222.0		$ 222.0
Shares issuable to Dissenting Shareholders								9.1
Business combination, consideration transferred, liabilities incurred								$ 627.0
Merger consideration including debt assumed			$ 18,700.0
Business combination consideration issuable or payable			$ 15,300.0
Business acquisition, equity interest issued or issuable, number of shares			213.9
Equity issued in business combination, fair value			$ 9,900.0
Jarden Acquisition [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Business combination, cash consideration transferred per share	$ 21.00
Business acquisition, equity interest issued or issuable, number of shares				6.6
Issue of common stock to settling petitioners , Value				$ 162.0
Jarden Acquisition [Member] | Pro Forma [Member]
Business Acquisition [Line Items]
Amortization of intangible assets							$ 51.9		$ 104.0
Sistema Plastics [Member]
Business Acquisition [Line Items]
Payments to acquire businesses, cash		$ 472.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		39.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		286.0
Goodwill		$ 147.0

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