Leases and Commitments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Rent expense	$ 106.5us-gaap_LeaseAndRentalExpense	$ 125.1us-gaap_LeaseAndRentalExpense	$ 133.1us-gaap_LeaseAndRentalExpense
Estimated cost of plant construction, expansion and modernization projects	$ 59.8

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

No definition available.

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration