Annual report pursuant to Section 13 and 15(d)

SUMMARY OF ACCOUNTING POLICIES - Additional Information (Detail)

v3.8.0.1
SUMMARY OF ACCOUNTING POLICIES - Additional Information (Detail) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Significant Accounting Policies [Line Items]                      
Investments and Restricted Cash $ 483       $ 476       $ 483 $ 476  
Allowance for doubtful account 104       102       104 102  
Provision for doubtful accounts expense                 133 116 $ 121
Inventories 404       342       404 342  
Capitalized interest                 49 14 13
Net currency transaction gains and (losses), pre-tax                 3 5 7
Increase in income tax benefits                 (2,238) (1,705) (2,498)
Other income                 (11) (2,236) 420
Decrease in other financing activities                 (3,287) 3,140 1,565
Increase in operating activities                 1,479 6,473 7,430
Operating lease, future minimal payments 1,637               1,637    
Revenues (18,829) $ (15,978) $ (15,750) $ (15,315) (16,931) $ (14,928) $ (14,629) $ (14,418) (65,872) (60,906) (58,363)
Costs and Expenses                 58,343 55,439 $ 50,695
Adjustments                      
Significant Accounting Policies [Line Items]                      
Increase in income tax benefits                 71    
Revenues                 709 720  
Costs and Expenses                 709 0  
Licenses                      
Significant Accounting Policies [Line Items]                      
Indefinite-lived intangible assets 5               5    
Trade Names                      
Significant Accounting Policies [Line Items]                      
Indefinite-lived intangible assets $ 200       $ 200       $ 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                 7 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