RETIREMENT PENSION PLANS (Details 5) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
RETIREMENT BENEFITS	$ 775	$ 886
Pension liability [Member]
RETIREMENT BENEFITS	315	387
Retiree medical liability — long term [Member]
RETIREMENT BENEFITS	446	476
Other [Member]
RETIREMENT BENEFITS	14	23
Total retirement benefits [Member]
RETIREMENT BENEFITS	$ 775	$ 886