Segment Information Level 4 (Details) - Geographic Net Sales (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Net Sales to Unaffiliated Customers (Geographic Information) [Line Items]      
Sales Revenue, Goods, Net $ 5,137 $ 4,890 $ 4,756
United States [Member]      
Net Sales to Unaffiliated Customers (Geographic Information) [Line Items]      
Sales Revenue, Goods, Net 2,189 [1] 2,109 [1] 2,005 [1]
Netherlands [Member]      
Net Sales to Unaffiliated Customers (Geographic Information) [Line Items]      
Sales Revenue, Goods, Net 856 [1] 887 [1] 902 [1]
Germany [Member]      
Net Sales to Unaffiliated Customers (Geographic Information) [Line Items]      
Sales Revenue, Goods, Net 282 [1] 280 [1] 298 [1]
Canada [Member]      
Net Sales to Unaffiliated Customers (Geographic Information) [Line Items]      
Sales Revenue, Goods, Net 429 [1] 357 [1] 336 [1]
Other international [Member]      
Net Sales to Unaffiliated Customers (Geographic Information) [Line Items]      
Sales Revenue, Goods, Net $ 1,381 [1] $ 1,257 [1] $ 1,215 [1]
[1] Sales are attributed to the country in which the individual business locations reside.