Noncontrolling Interests (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Purchase of noncontrolling interests	$ 4	$ 202	$ 169
Hellas Can [Member]
Percentage of ownership interest in subsidiary			85.00%
Vietnam (Dong Nai) [Member]
Percentage of ownership interest in subsidiary			96.00%
Senegal [Member]
Percentage of ownership interest in subsidiary			100.00%
Dubai [Member]
Percentage of ownership interest in subsidiary		100.00%
Beijing [Member]
Percentage of ownership interest in subsidiary		100.00%
Shanghai [Member]
Percentage of ownership interest in subsidiary		100.00%
Jordan [Member]
Percentage of ownership interest in subsidiary		60.00%
Tunisia [Member]
Percentage of ownership interest in subsidiary		60.00%