Segment Information (Schedule of Geographical Segments) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 6,802	$ 6,510	$ 6,418
Property, plant and equipment, net	3,733	3,425
BELGIUM
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	480	525	504
Property, plant and equipment, net	66	64
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	204	249	284
Property, plant and equipment, net	138	141
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	996	863	733
Property, plant and equipment, net	593	653
GERMANY
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	2,156	2,049	2,082
Property, plant and equipment, net	1,084	1,301
MEXICO
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	259	256	257
Property, plant and equipment, net	151	145
SINGAPORE
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	632	578	561
Property, plant and equipment, net	50	53
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	1,899	1,808	1,811
Property, plant and equipment, net	1,563	969
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	176	182	186
Property, plant and equipment, net	$ 88	$ 99