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Pension and Postretirement Benefit Plans (Detail) - USD ($) $ in Millions | 1 Months Ended | 9 Months Ended
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Jan. 31, 2017 | Oct. 01, 2017
Pension Plan [Member] | U.S. [Member] | Qualified [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Contributions from our general assets for the nine months ended October 1, 2017 |  | $ 1,000 | $ 1,095
Expected contributions from our general assets during 2017 | [1] |  | 1,095
Pension Plan [Member] | International [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Contributions from our general assets for the nine months ended October 1, 2017 |  |  | 134
Expected contributions from our general assets during 2017 | [1] |  | 170
Supplemental Employee Retirement Plan [Member] | U.S. [Member] | Non-Qualified [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Contributions from our general assets for the nine months ended October 1, 2017 |  |  | 121
Expected contributions from our general assets during 2017 | [1] |  | 146
Postretirement Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Contributions from our general assets for the nine months ended October 1, 2017 |  |  | 158
Expected contributions from our general assets during 2017 | [1] |  | $ 204
[1] | Contributions expected to be made for 2017 are inclusive of amounts contributed during the nine months ended October 1, 2017, including the $1.0 billion voluntary contribution that was made in January 2017 for the U.S. qualified plans, which was considered pre-funding for future anticipated mandatory contributions and is also expected to reduce Pension Benefit Guaranty Corporation variable rate premiums. The U.S. supplemental (non-qualified) pension plan, international pension plan and the postretirement plan contributions from our general assets include direct employer benefit payments.

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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5)(ii) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2709-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5)(iv)(01) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of contributions expected to be received by defined benefit plan from employer in fiscal year. Excludes contributions paid by employer in current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2709-114920 + Details
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