XML 36 R44.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Stockholders' Equity (Share Repurchase Program) (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Feb. 28, 2014 January 2014 Buyback Plan [Member] | Jan. 31, 2014 January 2014 Buyback Plan [Member] | Mar. 31, 2014 January 2014 Buyback Plan [Member] | Feb. 28, 2014 Q1 2014 Open Market Purchases [Member] | Feb. 28, 2013 December 2012 Buyback Plan [Member] | Dec. 31, 2012 December 2012 Buyback Plan [Member] | Jun. 30, 2013 December 2012 Buyback Plan [Member]
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |
Share buyback plan, Authorized Amount |  |  |  | $ 5,000 |  |  |  | $ 1,000 |
Prepayment for the repurchase of common stock | 1,061 | 1,000 | 1,000 |  |  |  | 1,000 |  |
Payment for the repurchase of common stock |  |  |  |  |  | $ 61 |  |  |
Stock Repurchased and Retired During Period, Shares |  |  |  |  | 12.5 | 1.0 |  |  | 20.4
Treasury Stock Acquired, Average Cost Per Share |  |  |  |  |  | $ 61.32 |  |  |
Percentage of share repurchase agreement completed |  |  |  |  | 80.00% |  |  |  |

X
- Definition Prepayment and cash outflow to reacquire common stock during the period. + References No definition available. + Details
Name: | dd_Cashoutflowfortherepurchaseofcommonstock
Namespace Prefix: | dd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage of share repurchase agreement completed + References No definition available. + Details
Name: | dd_Percentageofsharerepurchaseagreementcompleted
Namespace Prefix: | dd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_EquityClassOfTreasuryStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
Name: | us-gaap_PaymentsForRepurchaseOfCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of shares that have been repurchased and retired during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of a stock repurchase plan authorized by an entity's Board of Directors. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramAuthorizedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
Name: | us-gaap_TreasuryStockAcquiredAverageCostPerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration