POSTRETIREMENT BENEFITS AND EMPLOYEE STOCK OWNERSHIP PLAN - PENSION PLANS WITH ACCUMULATED AND PROJECTED BENEFIT OBLIGATIONS IN EXCESS OF PLAN ASSETS (DETAILS) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Accumulated Benefit Obligation Exceeds the Fair Value of Plan Assets
Projected benefit obligation	$ 12,024	$ 11,623
Accumulated benefit obligation	10,406	10,009
Fair value of plan assets	6,086	6,013
Projected Benefit Obligation Exceeds the Fair Value of Plan Assets
Projected benefit obligation	12,962	12,310
Accumulated benefit obligation	11,149	10,533
Fair value of plan assets	$ 6,895	$ 6,583

POSTRETIREMENT BENEFITS AND EMPLOYEE STOCK OWNERSHIP PLAN - PENSION PLANS WITH ACCUMULATED AND PROJECTED BENEFIT OBLIGATIONS IN EXCESS OF PLAN ASSETS (DETAILS) (USD $)
In Millions, unless otherwise specified

Jun. 30, 2013

Jun. 30, 2012

Accumulated Benefit Obligation Exceeds the Fair Value of Plan Assets

Projected benefit obligation

$ 12,024

$ 11,623

Accumulated benefit obligation

10,406

10,009

Fair value of plan assets

6,086

6,013

Projected Benefit Obligation Exceeds the Fair Value of Plan Assets

Projected benefit obligation

12,962

12,310

Accumulated benefit obligation

11,149

10,533

Fair value of plan assets

$ 6,895

$ 6,583

- Definition

If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References+ Details

- Definition

If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References+ Details

- Definition

If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References+ Details