LEASE COMMITMENTS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Leases Operating Abstract
Years of operating lease terms	Principally all our operating leases have initial terms of up to 25 years, and some contain renewal options subject to customary conditions.
Rent expense	$ 386	$ 369	$ 366
Operating Leases Future Minimum Payments Due Abstract
2012	311
2013	248
2014	184
2015	135
2016	92
Thereafter	243
Total	$ 1,213