POSTRETIREMENT BENEFITS AND EMPLOYEE STOCK OWNERSHIP PLAN - PENSION PLANS WITH ACCUMULATED AND PROJECTED BENEFIT OBLIGATIONS IN EXCESS OF PLAN ASSETS (DETAILS) (USD $) In Millions	Jun. 30, 2011	Jun. 30, 2010
Accumulated Benefit Obligation Exceeds the Fair Value of Plan Assets
Projected benefit obligation	$ 6,817	$ 10,577
Accumulated benefit obligation	5,923	9,194
Fair value of plan assets	2,845	5,900
Projected Benefit Obligation Exceeds the Fair Value of Plan Assets
Projected benefit obligation	10,650	11,059
Accumulated benefit obligation	8,940	9,531
Fair value of plan assets	$ 6,214	$ 6,320

Defined Benefit Plan, Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets [Abstract]

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

+ Details

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

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- Definition

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

+ Details

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- 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 6
-Subparagraph b

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- 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 6
-Subparagraph b

+ Details

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- 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph C3

+ Details

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