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SUMMARY OF ACCOUNTING POLICIES - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Significant Accounting Policies [Line Items] |  |  |  |
Investments and Restricted Cash |  | $ 476 | $ 473 |
Allowance for doubtful account |  | 102 | 118 |
Provision for doubtful accounts expense |  | 116 | 121 | $ 143
Inventories |  | 342 | 308 |
Capitalized interest |  | 14 | 13 | 11
Net currency transaction gains and (losses), pre-tax |  | 5 | 7 | 14
Increase in income tax benefits |  | (1,705) | (2,498) | (1,605)
Decrease in other financing activities |  | 3,140 | 1,565 | 5,161
Increase in operating activities |  | 6,473 | 7,430 | $ 5,726
Operating lease, future minimal payments |  | 1,470 |  |
Adjustments | Subsequent Event |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Increase in income tax benefits | $ 60 |  |  |
Decrease in other financing activities | (60) |  |  |
Increase in operating activities | $ 60 |  |  |
Licenses |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Indefinite-lived intangible assets |  | 4 |  |
Trade Names |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Indefinite-lived intangible assets |  | $ 200 | $ 200 |
Change in Assumptions for Pension Plans |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Net actuarial gains or losses in excess of market-related value of plan assets or the plans' projected benefit obligations |  | 10.00% |  |
Minimum |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Employee share-based awards, Vesting Period |  | 3 years |  |
Minimum | Other Intangible Assets |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Finite-lived intangible assets, estimated useful lives range, Minimum |  | 2 years |  |
Minimum | Capitalized software |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Finite-lived intangible assets, estimated useful lives range, Minimum |  | 5 years |  |
Minimum | Vehicles |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, plant and equipment, estimated useful lives range Minimum |  | 3 years |  |
Minimum | Aircraft |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, plant and equipment, estimated useful lives range Minimum |  | 12 years |  |
Minimum | Buildings |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, plant and equipment, estimated useful lives range Minimum |  | 20 years |  |
Minimum | Plant Equipment |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, plant and equipment, estimated useful lives range Minimum |  | 3 years |  |
Minimum | Technology equipment |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, plant and equipment, estimated useful lives range Minimum |  | 3 years |  |
Maximum |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Employee share-based awards, Vesting Period |  | 5 years |  |
Maximum | Other Intangible Assets |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Finite-lived intangible assets, estimated useful lives range, Minimum |  | 22 years |  |
Maximum | Vehicles |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, plant and equipment, estimated useful lives range Minimum |  | 15 years |  |
Maximum | Aircraft |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, plant and equipment, estimated useful lives range Minimum |  | 30 years |  |
Maximum | Buildings |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, plant and equipment, estimated useful lives range Minimum |  | 40 years |  |
Maximum | Plant Equipment |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, plant and equipment, estimated useful lives range Minimum |  | 20 years |  |
Maximum | Technology equipment |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Property, plant and equipment, estimated useful lives range Minimum |  | 5 years |  |

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