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Employee Benefit Plans (Details 1) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Consolidated Balance Sheet for pension and other postretirement benefit plans |  |
Noncurrent employee benefit plans | $ (7,421) | $ (7,216)
Pension Benefits | United States |  |
Consolidated Balance Sheet for pension and other postretirement benefit plans |  |
Deferred charges and other assets | 21 | 16
Accrued liabilities | (188) | (222)
Noncurrent employee benefit plans | (3,465) | (3,515)
Net amount recognized at December 31 | (3,632) | (3,721)
Pension Benefits | Int’l. |  |
Consolidated Balance Sheet for pension and other postretirement benefit plans |  |
Deferred charges and other assets | 448 | 199
Accrued liabilities | (100) | (75)
Noncurrent employee benefit plans | (1,122) | (1,119)
Net amount recognized at December 31 | (774) | (995)
Other Benefits |  |
Consolidated Balance Sheet for pension and other postretirement benefit plans |  |
Deferred charges and other assets | 0 | 0
Accrued liabilities | (174) | (163)
Noncurrent employee benefit plans | (2,614) | (2,386)
Net amount recognized at December 31 | $ (2,788) | $ (2,549)

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- Definition Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans. + 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 (c) -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 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64852052&loc=d3e1731-114919 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64852052&loc=d3e1703-114919 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(10)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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