Business Consolidation and Other Activities (Details) € in Millions, $ in Millions	1 Months Ended	3 Months Ended		12 Months Ended
	Dec. 31, 2013 USD ($) oz	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($) oz	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($) oz	Dec. 31, 2015 EUR (€)	Dec. 31, 2015 USD ($)	Jul. 31, 2013 USD ($)
Business consolidation and other activities
Business consolidation and other activities				$ (194.7)	$ (80.5)	$ (78.8)
Accounts receivable balance		$ 800.0			800.0			$ 759.3
Foreign currency gains and (losses) of restricted cash				(1.5)	(0.2)	0.6
(Loss) on cross-currrency swap				(69.1)	(23.2)	5.0
Long-term Debt		3,048.8			3,048.8			5,107.8
Ball Corporation
Business consolidation and other activities
Business consolidation and other activities				(159.4)	(11.2)	(0.7)
Aerospace & technologies
Business consolidation and other activities
Charges for other insignificant activities				0.7
Operating Segments | Metal beverage packaging, Americas and Asia
Business consolidation and other activities
Business consolidation and other activities				(24.1)	(7.5)	(3.6)
Gain on Business Interruption Insurance Recovery					3.5
Compensation received for reimbursement of severance costs incurred in connection with facilities closure and relocation					5.0	6.2
Charges for other insignificant activities				1.8
Compensation agreement, pretax amount									$ 72.0
Severance						7.2
Other costs which will not be compensated						1.6
Charges to eliminate 12-ounce beverage can production from facility						$ 9.7
Weight of container (in ounces) | oz	12		12			12
Charges related to facilities closure					1.7	$ 11.3
Accelerated depreciation						4.6
Severance, pension and other employee benefits						2.1
Other closure costs						3.0
Noncash charge for settlement					(13.9)
Amount recognized in cost of sales for business interruption						4.1
Operating Segments | Metal beverage packaging, Americas and Asia | VIRGINIA
Business consolidation and other activities
Non-cash charge for settlements				18.8
Charges for other insignificant activities				2.0
Severance, pension and other employee benefits				16.8
Operating Segments | Metal beverage packaging, Americas and Asia | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business consolidation and other activities
Loss on sale of facilities					(0.4)
Operating Segments | Metal beverage packaging, Americas and Asia | Land and buildings
Business consolidation and other activities
Compensation received for reimbursement of severance costs incurred in connection with facilities closure and relocation						34.0
Gain on sale of property						26.2
Operating Segments | Metal beverage packaging, Americas and Asia | Machinery and equipment
Business consolidation and other activities
Compensation received for reimbursement of severance costs incurred in connection with facilities closure and relocation						26.8
Proceeds from the compensation agreement, amount deferred	$ 23.0		$ 23.0			23.0
Amount of reimbursement used to offset costs						3.8
Operating Segments | Metal Beverage Packaging Asia
Business consolidation and other activities
Business consolidation and other activities				(3.5)
Operating Segments | Metal beverage packaging, Europe
Business consolidation and other activities
Business consolidation and other activities				(9.8)	(8.7)	(10.6)
Charges for other insignificant activities				5.1
Operating Segments | Metal beverage packaging, Europe | Disposal Group, Held-for-sale, Not Discontinued Operations
Business consolidation and other activities
Charges incurred in connection with write down of fixed assets held for sale				4.7
Operating Segments | Metal food & household products packaging
Business consolidation and other activities
Business consolidation and other activities				(0.5)	(41.9)	(63.7)
Charges for other insignificant activities				0.5		0.4
Voluntary and involuntary severance					6.2
Accounts receivable provision		16.5				27.0
Charges related to facilities closure	29.0		4.9		5.0
Accelerated depreciation	8.8
Severance, pension and other employee benefits	16.0
Other closure costs					3.9
Accounts receivable balance	46.5		$ 46.5			46.5
Charges related to migrate certain hourly employees from a multi-employer defined benefit pension plan to a Ball-sponsored defined benefit pension plan						5.9
Income related to settlement of defined benefit pension liabilities						3.5
Write down of land and buildings down to net realizable value	$ 4.2
Noncash charge for settlement					(10.3)
Operating Segments | Metal Beverage Packaging, Europe, and Corporate
Business consolidation and other activities
Charges for other insignificant activities		$ 1.1			4.8
Charge incurred in connection with headcount reductions, cost-out initiatives and relocation of the company's European headquarters from Germany to Switzerland					4.1	11.3
Noncash charge for settlement					(7.2)
Operating Segments | Aerospace & technologies
Business consolidation and other activities
Business consolidation and other activities				0.7	(13.9)	(0.2)
Noncash charge for settlement					(13.9)
Corporate
Business consolidation and other activities
Business consolidation and other activities				(161.0)	$ (8.5)	$ (0.7)
Corporate | Rexam PLC
Business consolidation and other activities
Charges for other insignificant activities				0.5
Professional Services And Other Costs				97.9
Recognized Gains (Losses) of associated with its collar and option contracts				(41.0)
Currency swap | Corporate | Rexam PLC
Business consolidation and other activities
(Loss) on cross-currrency swap				(7.4)
Senior Notes, due 2020
Business consolidation and other activities
Long-term Debt | €							€ 400
Senior Notes, due 2020 | Corporate | Rexam PLC
Business consolidation and other activities
Long-term Debt								$ 1,000.0
Interest rate floor - Euribor | Corporate | Rexam PLC
Business consolidation and other activities
Foreign currency gains and (losses) of restricted cash				$ (14.2)