NOTES PAYABLE, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES (Schedule of Notes Payable) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Debt Disclosure [Abstract]
Notes payable to banks	$ 421	$ 1,310
Notes payable to related companies	92	157
Notes payable trade	28	0
Notes payable	$ 541	$ 1,467
Period-end average interest rates	3.06%	2.64%