Subsequent Events (Alcon Cable China) (Details) (USD $) In Millions, unless otherwise specified	Sep. 28, 2012	Dec. 31, 2011	Dec. 03, 2012 CHINA [Member] Subsequent Event [Member] Alcan Cable [Member]
Subsequent Event [Line Items]
Cash			$ 8.4
Accounts receivable			8.5
Inventories			20.5
Property, plant, and equipment			58.8
Intangible assets			0
Goodwill	170.3	168.1	0
Other current and noncurrent assets			0.2
Total Assets			96.4
Current liabilities			18.6
Other liabilities			20.1
Total liabilities			$ 38.7