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Long-Term Employee Benefits (Tables) | 12 Months Ended
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Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items] |
Summarized Information on Pension and Other Long-Term Benefits Plans |
| Pension Benefits | Other Benefits
Obligations and Funded Status at December 31, | 2015 | 2014 | 2015 | 2014
Change in benefit obligation |  |  |  |  |  |  |  |
Benefit obligation at beginning of year | $ | 29,669 |  |  | $ | 26,289 |  |  | $ | 2,889 |  |  | $ | 2,754 |  |
Service cost | 232 |  |  | 241 |  |  | 15 |  |  | 17 |  |
Interest cost | 1,084 |  |  | 1,162 |  |  | 112 |  |  | 121 |  |
Plan participants' contributions | 19 |  |  | 21 |  |  | 45 |  |  | 37 |  |
Actuarial (gain) loss | (1,404 | ) |  | 3,672 |  |  | (4 | ) |  | 280 |  |
Benefits paid | (1,761 | ) |  | (1,651 | ) |  | (282 | ) |  | (270 | ) |
Amendments | — |  |  | (44 | ) |  | — |  |  | (50 | ) |
Effect of foreign exchange rates | (456 | ) |  | — |  |  | (6 | ) |  | — |  |
Net effects of acquisitions/divestitures | (52 | ) |  | (21 | ) |  | — |  |  | — |  |
Spin-off of Chemours | (1,237 | ) |  | — |  |  | (11 | ) |  | — |  |
Benefit obligation at end of year | $ | 26,094 |  |  | $ | 29,669 |  |  | $ | 2,758 |  |  | $ | 2,889 |  |
Change in plan assets |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year | $ | 20,446 |  |  | $ | 20,614 |  |  | $ | — |  |  | $ | — |  |
Actual gain on plan assets | 88 |  |  | 1,163 |  |  | — |  |  | — |  |
Employer contributions | 308 |  |  | 311 |  |  | 237 |  |  | 233 |  |
Plan participants' contributions | 19 |  |  | 21 |  |  | 45 |  |  | 37 |  |
Benefits paid | (1,761 | ) |  | (1,651 | ) |  | (282 | ) |  | (270 | ) |
Effect of foreign exchange rates | (330 | ) |  | — |  |  | — |  |  | — |  |
Net effects of acquisitions/divestitures | (47 | ) |  | (12 | ) |  | — |  |  | — |  |
Spin-off of Chemours | (1,226 | ) |  | — |  |  | — |  |  | — |  |
Fair value of plan assets at end of year | $ | 17,497 |  |  | $ | 20,446 |  |  | $ | — |  |  | $ | — |  |
Funded status |  |  |  |  |  |  |  |
U.S. plan with plan assets | $ | (6,662 | ) |  | $ | (7,072 | ) |  | $ | — |  |  | $ | — |  |
Non-U.S. plans with plan assets | (748 | ) |  | (747 | ) |  | — |  |  | — |  |
All other plans | (1,187 | ) | 1 |  | (1,357 | ) | 1 |  | (2,758 | ) |  | (2,878 | ) |
Plans of discontinued operations | — |  |  | (47 | ) |  | — |  |  | (11 | ) |
Total | $ | (8,597 | ) |  | $ | (9,223 | ) |  | $ | (2,758 | ) |  | $ | (2,889 | ) |
Amounts recognized in the Consolidated Balance Sheets consist of: |  |  |  |  |  |  |  |
Assets of discontinued operations | $ | — |  |  | $ | 92 |  |  | $ | — |  |  | $ | — |  |
Other assets | 11 |  |  | (28 | ) |  | — |  |  | — |  |
Other accrued liabilities (Note 13) | (130 | ) |  | (118 | ) |  | (234 | ) |  | (223 | ) |
Liabilities of discontinued operations | — |  |  | (152 | ) |  | — |  |  | (11 | ) |
Other liabilities (Note 15) | (8,478 | ) |  | (9,017 | ) |  | (2,524 | ) |  | (2,655 | ) |
Net amount recognized | $ | (8,597 | ) |  | $ | (9,223 | ) |  | $ | (2,758 | ) |  | $ | (2,889 | ) |
1. | Includes pension plans maintained around the world where funding is not customary.
Schedule of Amounts Recognized in Accumulated Other Comprehensive Loss |
| Pension Benefits | Other Benefits
December 31, | 2015 | 2014 | 2015 | 2014
Net loss | $ | (10,803 | ) | $ | (12,164 | ) | $ | (787 | ) | $ | (870 | )
Prior service benefit | 54 |  | 59 |  | 811 |  | 1,269 |
| $ | (10,749 | ) | $ | (12,105 | ) | $ | 24 |  | $ | 399 |
Schedule of Information for Pension Plans with Projected Benefit Obligation in Excess of Plan Assets |
Information for pension plans with projected benefit obligation in excess of plan assets | 2015 | 2014
Projected benefit obligation | $ | 25,769 |  | $ | 28,079 |
Accumulated benefit obligation | 24,715 |  | 26,498 |
Fair value of plan assets | 17,162 |  | 18,792 |
Schedule of Information for Pension Plans with Accumulated Benefit Obligation in Excess of Plan Assets |
Information for pension plans with accumulated benefit obligations in excess of plan assets | 2015 | 2014
Projected benefit obligation | $ | 25,515 |  | $ | 27,892 |
Accumulated benefit obligation | 24,508 |  | 26,367 |
Fair value of plan assets | 16,930 |  | 18,638 |
Schedule of Assumptions Used to Determine Benefit Obligations |
| Pension Benefits | Other Benefits
Weighted-average assumptions used to determine benefit obligations at December 31, | 2015 | 2014 | 2015 | 2014
Discount rate | 4.13 | % | 3.78 | % | 4.32 | % | 3.95 | %
Rate of compensation increase 1 | 3.94 | % | 4.00 | % | — | % | — | %
1. | The rate of compensation increase represents the single annual effective salary increase that an average plan participant would receive during the participant's entire career at the company.
Schedule of Assumptions Used to Determine Net Periodic Benefit Cost [Text Block] |
| Pension Benefits | Other Benefits
Weighted-average assumptions used to determine net periodic benefit cost for the years ended December 31, | 2015 | 2014 | 2013 | 2015 | 2014 | 2013
Discount rate | 3.93 | % | 4.55 | % | 3.90 | % | 4.13 | % | 4.60 | % | 3.85 | %
Expected return on plan assets | 8.10 | % | 8.35 | % | 8.39 | % | — | % | — | % | — | %
Rate of compensation increase | 4.01 | % | 4.22 | % | 4.14 | % | — | % | — | % | 4.40 | %
Schedule of Assumed Health Care Cost Trend Rates |
Assumed health care cost trend rates at December 31, | 2015 | 2014
Health care cost trend rate assumed for next year | 7 | % | 7 | %
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) | 5 | % | 5 | %
Year that the rate reaches the ultimate trend rate | 2023 |  | 2022 |
Schedule of a One-Percentage Point Change in Assumed Health Care Cost Trend Rates |
| 1-Percentage Point Increase | 1-Percentage Point Decrease
Increase (decrease) on total of service and interest cost | $ | 2 |  | $ | (2 | )
Increase (decrease) on post-retirement benefit obligation | 26 |  | (25 | )
Schedule of Weighted Average Target Allocations for Plan Assets |
Target allocation for plan assets at December 31, | 2015 | 2014
U.S. equity securities | 29 | % | 28 | %
Non-U.S. equity securities | 22 |  | 21 |
Fixed income securities | 32 |  | 32 |
Hedge funds | 2 |  | 2 |
Private market securities | 9 |  | 9 |
Real estate | 3 |  | 5 |
Cash and cash equivalents | 3 |  | 3 |
Total | 100 | % | 100 | %
Schedule of Fair Value of Pension Assets |
| Fair Value Measurements at December 31, 2015
Asset Category | Total | Level 1 | Level 2 | Level 3
Cash and cash equivalents | $ | 1,962 |  | $ | 1,961 |  | $ | 1 |  | $ | — |
U.S. equity securities 1 | 3,873 |  | 3,843 |  | 10 |  | 20 |
Non-U.S. equity securities | 3,597 |  | 3,480 |  | 115 |  | 2 |
Debt – government-issued | 2,036 |  | 852 |  | 1,184 |  | — |
Debt – corporate-issued | 2,380 |  | 291 |  | 2,055 |  | 34 |
Debt – asset-backed | 831 |  | 44 |  | 786 |  | 1 |
Hedge funds | 430 |  | — |  | 1 |  | 429 |
Private market securities | 1,607 |  | — |  | 17 |  | 1,590 |
Real estate | 703 |  | 98 |  | 4 |  | 601 |
Derivatives – asset position | 58 |  | 10 |  | 48 |  | — |
Derivatives – liability position | (59 | ) | 1 |  | (60 | ) | — |
| $ | 17,418 |  | $ | 10,580 |  | $ | 4,161 |  | $ | 2,677 |
Pension trust receivables 2 | 783 |  |  |  |  |  |  |
Pension trust payables 3 | (704 | ) |  |  |  |  |  |
Total | $ | 17,497 |  |  |  |  |  |  |
| Fair Value Measurements at December 31, 2014
Asset Category | Total | Level 1 5 | Level 2 4,5 | Level 3 4
Cash and cash equivalents | $ | 2,310 |  | $ | 2,310 |  | $ | — |  | $ | — |
U.S. equity securities 1 | 4,610 |  | 4,566 |  | 15 |  | 29 |
Non-U.S. equity securities | 4,436 |  | 3,813 |  | 619 |  | 4 |
Debt – government-issued | 2,649 |  | 990 |  | 1,659 |  | — |
Debt – corporate-issued | 2,600 |  | 370 |  | 2,215 |  | 15 |
Debt – asset-backed | 914 |  | 46 |  | 867 |  | 1 |
Hedge funds | 445 |  | — |  | — |  | 445 |
Private market securities | 1,730 |  | — |  | 11 |  | 1,719 |
Real estate | 1,065 |  | 76 |  | 3 |  | 986 |
Derivatives – asset position | 106 |  | 7 |  | 99 |  | — |
Derivatives – liability position | (79 | ) | — |  | (79 | ) | — |
| $ | 20,786 |  | $ | 12,178 |  | $ | 5,409 |  | $ | 3,199 |
Pension trust receivables 2 | 413 |  |  |  |  |  |  |
Pension trust payables 3 | (753 | ) |  |  |  |  |  |
Total | $ | 20,446 |  |  |  |  |  |  |
1. | The company's pension plans directly held $664 (4 percent of total plan assets) and $737 (4 percent of total plan assets) of DuPont common stock at December 31, 2015 and 2014, respectively.
2. | Primarily receivables for investment securities sold.
3. | Primarily payables for investment securities purchased.
4. | The company’s pension assets by fair value hierarchy table at December 31, 2014 have been revised for the following correction: increase in Level 2 - Non-U.S. Equity Securities of $566 with a corresponding reduction in Level 3 - Private Market Securities.
5. | The company's pension assets by fair value hierarchy table at December 31, 2014 included approximately $109 of Level 1 assets and $1,090 of Level 2 assets that were transferred to Chemours upon completion of the spin-off transaction.
Schedule of Fair Value of Plan Assets Held in Level 3 |
| Level 3 Assets
| Total | U.S. Equity Securities | Non-U.S. Equity Securities | Debt- Corporate Issued | Debt- Asset- Backed | Hedge Funds | Private Market Securities | Real Estate
Beginning balance at December 31, 2013 | $ | 3,598 |  | $ | 27 |  | $ | 3 |  | $ | 19 |  | $ | 4 |  | $ | 434 |  | $ | 2,005 |  | $ | 1,106 |
Realized gain (loss) | 92 |  | (5 | ) | — |  | 11 |  | — |  | 12 |  | 74 |  | — |
Change in unrealized (loss) gain | (90 | ) | (14 | ) | (2 | ) | (2 | ) | (1 | ) | 8 |  | (93 | ) | 14 |
Purchases, sales and settlements, net | (393 | ) | 24 |  | 3 |  | (10 | ) | — |  | (9 | ) | (267 | ) | (134 | )
Transfers (out) in of Level 3 | (8 | ) | (3 | ) | — |  | (3 | ) | (2 | ) | — |  | — |  | — |
Ending balance at December 31, 2014 | $ | 3,199 |  | $ | 29 |  | $ | 4 |  | $ | 15 |  | $ | 1 |  | $ | 445 |  | $ | 1,719 |  | $ | 986 |
Realized (loss) gain | (77 | ) | (14 | ) | — |  | (18 | ) | — |  | 9 |  | 15 |  | (69 | )
Change in unrealized (loss) gain | (48 | ) | 5 |  | (3 | ) | 15 |  | — |  | (2 | ) | (39 | ) | (24 | )
Purchases, sales and settlements, net | (410 | ) | — |  | — |  | 10 |  | — |  | (23 | ) | (105 | ) | (292 | )
Transfers in (out) of Level 3 | 13 |  | — |  | 1 |  | 12 |  | — |  | — |  | — |  | — |
Ending balance at December 31, 2015 | $ | 2,677 |  | $ | 20 |  | $ | 2 |  | $ | 34 |  | $ | 1 |  | $ | 429 |  | $ | 1,590 |  | $ | 601 |
Schedule of Estimated Future Benefit Payments |
| Pension Benefits | Other Benefits
2016 | $ | 1,652 |  | $ | 234 |
2017 | 1,582 |  | 225 |
2018 | 1,585 |  | 219 |
2019 | 1,593 |  | 212 |
2020 | 1,600 |  | 204 |
Years 2021-2025 | 7,992 |  | 915 |
Pension Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Net Benefit Costs and Other Comprehensive Income Tables [Table Text Block] |
| Pension Benefits
Components of net periodic benefit cost (credit) and amounts recognized in other comprehensive income | 2015 | 2014 | 2013
Net periodic benefit cost |  |  |
Service cost | $ | 232 |  | $ | 241 |  | $ | 271 |
Interest cost | 1,084 |  | 1,162 |  | 1,088 |
Expected return on plan assets | (1,554 | ) | (1,611 | ) | (1,524 | )
Amortization of loss | 768 |  | 601 |  | 957 |
Amortization of prior service (benefit) cost | (9 | ) | 2 |  | 8 |
Curtailment (gain) loss | (6 | ) | 4 |  | 1 |
Settlement loss | 76 |  | 7 |  | 152 |
Net periodic benefit cost - Total | $ | 591 |  | $ | 406 |  | $ | 953 |
Less: Discontinued operations | (5 | ) | 40 |  | 50 |
Net period benefit cost - Continuing operations | $ | 596 |  | $ | 366 |  | $ | 903 |
Changes in plan assets and benefit obligations recognized in other comprehensive income |  |  |
Net loss (gain) | $ | 57 |  | $ | 4,131 |  | $ | (3,293 | )
Amortization of loss | (768 | ) | (601 | ) | (957 | )
Prior service benefit | — |  | (44 | ) | (62 | )
Amortization of prior service benefit (cost) | 9 |  | (2 | ) | (8 | )
Curtailment gain (loss) | 6 |  | (4 | ) | (1 | )
Settlement loss | (76 | ) | (7 | ) | (152 | )
Effect of foreign exchange rates | (119 | ) | — |  | — |
Spin-off of Chemours | (382 | ) | — |  | — |
Total (benefit) loss recognized in other comprehensive income | $ | (1,273 | ) | $ | 3,473 |  | $ | (4,473 | )
Noncontrolling interest | — |  | 1 |  | — |
Total (benefit) loss recognized in other comprehensive income, attributable to DuPont | $ | (1,273 | ) | $ | 3,474 |  | $ | (4,473 | )
Total recognized in net periodic benefit cost and other comprehensive income | $ | (682 | ) | $ | 3,880 |  | $ | (3,520 | )
Other Long-Term Employee Benefit Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Net Benefit Costs and Other Comprehensive Income Tables [Table Text Block] |
| Other Benefits
Components of net periodic benefit cost (credit) and amounts recognized in other comprehensive income | 2015 | 2014 | 2013
Net periodic benefit cost |  |  |
Service cost | $ | 15 |  | $ | 17 |  | $ | 29 |
Interest cost | 112 |  | 121 |  | 130 |
Amortization of loss | 78 |  | 57 |  | 76 |
Amortization of prior service benefit | (182 | ) | (214 | ) | (195 | )
Curtailment gain 1 | (274 | ) | — |  | (154 | )
Settlement loss | — |  | — |  | 1 |
Net periodic benefit credit - Total | $ | (251 | ) | $ | (19 | ) | $ | (113 | )
Less: Discontinued operations | (272 | ) | 3 |  | 5 |
Net periodic benefit cost (credit) - Continuing operations | $ | 21 |  | $ | (22 | ) | $ | (118 | )
Changes in plan assets and benefit obligations recognized in other comprehensive income |  |  |
Net (gain) loss | $ | (4 | ) | $ | 280 |  | $ | (513 | )
Amortization of loss | (78 | ) | (57 | ) | (76 | )
Prior service benefit | — |  | (50 | ) | (211 | )
Amortization of prior service benefit | 182 |  | 214 |  | 195 |
Curtailment gain 1 | 274 |  | — |  | 154 |
Settlement loss | — |  | — |  | (1 | )
Effect of foreign exchange rates | 1 |  | — |  | — |
Total loss (benefit) recognized in other comprehensive income, attributable to DuPont | $ | 375 |  | $ | 387 |  | $ | (452 | )
Total recognized in net periodic benefit cost and other comprehensive income | $ | 124 |  | $ | 368 |  | $ | (565 | )
1. | As a result of the separation of the Performance Chemicals segment, the company recorded an other long-term employee benefit plans curtailment gain of $274.

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