Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accounts receivable, allowances	$ 10.1	$ 11.6
Preferred stock, par value	$ 1	$ 1
Preferred stock, authorized	5,000,000us-gaap_PreferredStockSharesAuthorized	5,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, issued	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Common stock, par value	$ 0.25	$ 0.25
Common stock, authorized	600,000,000us-gaap_CommonStockSharesAuthorized	600,000,000us-gaap_CommonStockSharesAuthorized
Common stock, issued	74,893,483us-gaap_CommonStockSharesIssued	77,436,263us-gaap_CommonStockSharesIssued
Common stock, outstanding	74,893,483us-gaap_CommonStockSharesOutstanding	77,436,263us-gaap_CommonStockSharesOutstanding

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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