Organization (Details) (Walgreen Co. [Member]) Share data in Millions, unless otherwise specified	3 Months Ended
Nov. 30, 2014 USD ($)	Nov. 30, 2014 GBP (£)
Business Acquisition [Line Items]
Percentage of ownership by parent company (in hundredths)	100.00%
Percentage of direct ownership by parent company (in hundredths)	45.00%
Cash paid by parent company to acquire investment	$ 4,025,000,000
Shares issued for investment by parent compant (in shares)	83.4
Remaining ownership subject to call option (in hundredths)	55.00%
Cash price to exercise call option by parent	$ 4,900,000,000	£ 3,100,000,000
Shares to be issued by parent upon exercise of call option (in shares)	144.3

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

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- Definition

The number of shares issued as [noncash or part noncash] consideration for a business or asset acquired. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

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- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

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- Definition

The total option cost of the investment that is subject to option.

+ References

No definition available.

+ Details

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- Definition

The percentage of the investment that is subject to option.

+ References

No definition available.

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- Definition

The number of shares to be issued upon exercise of the call option.

+ References

No definition available.

+ Details

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