Consolidated Balance Sheets (Parenthetical) In Millions, except Share data, unless otherwise specified	Dec. 31, 2013 USD ($)	Dec. 31, 2013 CHF	Dec. 31, 2012 USD ($)	Dec. 31, 2012 CHF
Accounts and notes receivable, allowances	$ 115.1		$ 37.5
Common stock, par value (CHF per share)		0.50		0.50
Common stock, shares authorized	213,000,000	213,000,000	213,000,000	213,000,000
Common stock, shares issued	213,000,000	213,000,000	213,000,000	213,000,000
Treasury stock, shares	15,600,000	15,600,000	6,900,000	6,900,000