Taxes on Income (Details 4) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
A roll forward of the unrecognized tax benefits related to uncertain income tax positions
Balance at the beginning of the period	$ 65.5	$ 78.3	$ 76.6
Additions based on tax positions related to the current year	1.0	1.4	1.7
Additions for tax positions of prior years	2.2	7.7	5.5
Reductions for settlements	(8.4)		(7.2)
Reductions due to lapse of statute of limitations	(5.7)	(16.5)	(0.2)
Effect of foreign currency exchange rates	(4.1)	(5.4)	1.9
Balance at the end of the period	50.5	65.5	78.3
Amount of unrecognized tax benefits that, if recognized, would reduce tax expense	57.2
Additional income tax expense related to interest on unrecognized tax benefit	1.6	1.3	2.7
Accrued interest related to unrecognized tax benefit	9.2	11.2
Annual provision (benefit) for income taxes	47.0	149.9	149.6
Accrued penalties related to unrecognized tax benefit	0.0
Maximum
A roll forward of the unrecognized tax benefits related to uncertain income tax positions
Amount by which it is reasonably possible that unrecognized tax benefits may decrease within the next 12 months	0.1
Ball Corporation
A roll forward of the unrecognized tax benefits related to uncertain income tax positions
Annual provision (benefit) for income taxes	(120.5)	$ (23.1)	$ (35.2)
Foreign
Taxes on Income
Tax credit carryforwards expiring between 2015 and 2024	$ 47.1