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RETIREMENT MEDICAL PLANS (Details 7) (Retiree Medical Plan [Member], USD $)
In Millions, unless otherwise specified
Sep. 30, 2014
Gross Benefit Payments [Member]
 
Retiree Medical Plan Estimated Future Benefit Payments [Abstract]  
Fiscal 2015 $ 38
Fiscal 2016 39
Fiscal 2017 39
Fiscal 2018 40
Fiscal 2019 40
Fiscal 2020-2024 202
EGWP Subsidy Receipts [Member]
 
Retiree Medical Plan Estimated Future Benefit Payments [Abstract]  
Fiscal 2015 5 [1]
Fiscal 2016 6 [1]
Fiscal 2017 6 [1]
Fiscal 2018 7 [1]
Fiscal 2019 7 [1]
Fiscal 2020-2024 $ 41 [1]
[1] Consists of subsidies and rebates available under EGWP.