GOODWILL AND OTHER INTANGIBLE ASSETS Finite-Lived Assets Future Amortization Expense (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2013
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Future amortization expense for remainder of 2013	$ 106
Future amortization expense for 2014	206
Future amortization expense for 2015	187
Future amortization expense for 2016	154
Future amortization expense for 2017	103
Future amortization expense for 2018	66
Future amortization thereafter	$ 129