The effective date of acquisition for pro forma information purposes.

No definition available.

Name:	bdx_BusinessAcquisitionsProformaAcquisitionDate
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- Definition

Cash to be paid/paid, per share acquired, to acquiree's shareholders.

+ References

No definition available.

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of acquirer's shares to be received/received by acquiree's shareholders per each share of acquiree.

+ References

No definition available.

+ Details

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- Definition

Charge against earnings during the period for pre-close interest expense, commitment fees and debt issuance expenses incurred in connection with a business combination.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The expected timing of commercialization for a product which is currently under development .

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The probability of success, based upon the applicable technological and commercial risk, assumed relative to in-process research and development assets acquired.

+ References

No definition available.

+ Details

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Namespace Prefix:	bdx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying value as of balance sheet date of obligations incurred through that date and payable for estimated costs relating to a product recall.

+ References

No definition available.

+ Details

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Namespace Prefix:	bdx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Date when the business acquisition agreement was executed, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

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Balance Type:	na
Period Type:	duration

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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- Definition

The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

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-SubTopic 30

-Section 30

-Paragraph 8

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-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

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- Definition

Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

+ References

No definition available.

+ Details

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- Definition

Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

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-SubTopic 10

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-Paragraph 1

-Subparagraph (SAB TOPIC 5.P.3)

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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Acquisitions - Additional Information (Detail) (CareFusion [Member], USD $)	0 Months Ended	3 Months Ended	6 Months Ended
	Mar. 17, 2015	Mar. 31, 2015	Mar. 31, 2015	Mar. 17, 2015
Business Acquisition [Line Items]
Percentage of equity interest acquired	100.00%			100.00%
Cash value of stock received under the agreement	$ 49.00			$ 49.00
Number of shares issued for each share of acquiree	0.0777			0.0777
Acquisition agreement date			Oct. 05, 2014
Acquisition-date fair value of consideration transferred net of in cash acquired	$ 12,538,000,000
Liability for product recalls		36,000,000bdx_ProductRecallAccrual	36,000,000bdx_ProductRecallAccrual
Portion of goodwill from acquisition expected to be deductible for tax purposes		0	0
Financing costs		58,000,000	102,000,000
Transaction costs		33,000,000	43,000,000
Integration costs		18,000,000	31,000,000
Restructuring costs		62,000,000us-gaap_RestructuringCharges	62,000,000us-gaap_RestructuringCharges
Pro forma date of acquisition		Oct. 01, 2013
Employee Severance [Member]
Business Acquisition [Line Items]
Restructuring costs		34,000,000	34,000,000
Share Based Compensation Related [Member]
Business Acquisition [Line Items]
Restructuring costs		18,000,000	18,000,000
Other Restructuring Costs [Member]
Business Acquisition [Line Items]
Restructuring costs		10,000,000	10,000,000
Trade Names and Trademarks [Member]
Business Acquisition [Line Items]
Risk-adjusted discount rate			11.00%
Customer Relationships [Member]
Business Acquisition [Line Items]
Risk-adjusted discount rate			11.00%
Weighted average amortization period, expected useful life			15 years
Developed Technology [Member]
Business Acquisition [Line Items]
Risk-adjusted discount rate			11.00%
Weighted average amortization period, expected useful life			12 years
In-Process Research and Development [Member]
Business Acquisition [Line Items]
Risk-adjusted discount rate			12.00%
Acquired in-process research and development		$ 150,000,000	$ 150,000,000
In-Process Research and Development [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Technological and commercial risk			80.00%
Expected fiscal year of project launch			2016
In-Process Research and Development [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Technological and commercial risk			85.00%
Expected fiscal year of project launch			2022