Investments in Unconsolidated Affiliates (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statement of Financial Position [Abstract]
Current assets	$ 739	$ 655
Noncurrent assets	84	72
Current liabilities	489	460
Noncurrent liabilities	19	29
Noncontrolling interest	51	38
Results of Operations:
Net sales	2,058	1,808	1,547
Gross profit	672	596	508
Net income	136	80	70
Net income (loss) attributable to investee	123	69	63
Equity in Earnings of Subsidiaries	$ 34	$ 19	$ 11