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Summarized Financial Information of Unconsolidated Affiliate Level 4 (Details) - HAI Results of Operation (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
HAI Summarized Financial Information [Line Items]      
Net sales $ 207 $ 206 $ 163
Gross Profit 52 49 34
Pre-tax income 31 29 16
Net Income $ 31 $ 29 $ 16