Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Net of Tax	$ 87.1
Other comprehensive income (loss)	14.2	(22.2)	(191.5)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax	25.5
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax	0
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net (Gain) Loss, Net of Tax	15.6
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(88.5)	(48.3)	(124.2)
Pension and other postretirement liability adjustments, net of tax	102.7	26.2	(66.8)
Accumulated other comprehensive loss, net of tax
Foreign currency translation	(8.0)	80.5
Pension and postretirement liability adjustment, net of tax effect	(90.7)	(193.4)
Tax effect of pension liability adjustment	55.6	120.9
Accumulated other comprehensive income (loss)	(98.7)	(112.9)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(88.5)
Total other comprehensive income (loss)
Comprehensive income (loss) attributable to Bemis Company, Inc.	226.8	151.6	(9.5)
Comprehensive income (loss) attributable to noncontrolling interest	0	0	5.3
Total comprehensive income (loss)	226.8	151.6	(4.2)
Before reclassification [Member]
Other comprehensive income (loss)	(1.4)
Reclassified [Member]
Other comprehensive income (loss)	$ 15.6