Accrued Expenses and Other Long-Term Liabilities, Environmental Matters (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Changes in Environmental Liabilities Rollforward Analysis
Balance as of beginning of year	$ 268	$ 279	$ 297
Pembroke Acquisition	30	0	0
Additions to liability	18	50	21
Reductions to liability	(5)	(21)	(5)
Payments, net of third-party recoveries	(35)	(42)	(40)
Foreign currency translation	(2)	2	6
Balance as of end of year	$ 274	$ 268	$ 279