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GOODWILL AND INTANGIBLE ASSETS - Allocation of Goodwill by Reportable Segment (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Goodwill [Line Items] |  |
Beginning Balance | $ 3,872 | $ 3,757
Acquired | 0 | 72
Currency / Other | (61) | 43
Ending Balance | 3,811 | 3,872
U.S. Domestic Package |  |
Goodwill [Line Items] |  |
Beginning Balance | 715 | 715
Acquired | 0 | 0
Currency / Other | 0 | 0
Ending Balance | 715 | 715
International Package |  |
Goodwill [Line Items] |  |
Beginning Balance | 435 | 407
Acquired | 0 | 18
Currency / Other | (18) | 10
Ending Balance | 417 | 435
Supply Chain & Freight |  |
Goodwill [Line Items] |  |
Beginning Balance | 2,722 | 2,635
Acquired | 0 | 54
Currency / Other | (43) | 33
Ending Balance | $ 2,679 | $ 2,722

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + 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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