Annual report pursuant to Section 13 and 15(d)

DEBT AND FINANCING ARRANGEMENTS - Carrying Value of Debt Obligations (Detail)

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DEBT AND FINANCING ARRANGEMENTS - Carrying Value of Debt Obligations (Detail)
12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2018
EUR (€)
Nov. 08, 2017
EUR (€)
Oct. 01, 2017
Debt Instrument [Line Items]          
Principal Amount $ 23,633,000,000        
Long-term Debt 22,349,000,000        
Total debt 22,736,000,000 $ 24,289,000,000      
Less current maturities (2,805,000,000) (4,011,000,000)      
Long-term debt, excluding current maturities 19,931,000,000 20,278,000,000      
Commercial paper          
Debt Instrument [Line Items]          
Principal Amount $ 2,662,000,000        
Maturity Dec. 31, 2018        
Total debt $ 2,662,000,000 $ 3,203,000,000      
Senior notes | 1.125% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 375,000,000        
Debt instrument, stated interest rate percentage 1.125%   1.125%   5.50%
Maturity - Maximum Date   Jan. 01, 2017      
Senior notes | 5.50% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 750,000,000        
Debt instrument, stated interest rate percentage 5.50%   5.50%    
Maturity - Maximum Date Jan. 01, 2018        
Maturity Dec. 31, 2018        
Total debt $ 0 $ 751,000,000      
Senior notes | 5.125% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 1,000,000,000.0        
Debt instrument, stated interest rate percentage 5.125%   5.125%    
Maturity - Maximum Date Jan. 01, 2019        
Maturity Dec. 31, 2019        
Total debt $ 998,000,000 1,019,000,000      
Senior notes | 3.125% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 1,500,000,000        
Debt instrument, stated interest rate percentage 3.125%   3.125%    
Maturity - Maximum Date Jan. 01, 2021        
Maturity Dec. 31, 2021        
Total debt $ 1,492,000,000 1,549,000,000      
Senior notes | 2.050% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 700,000,000        
Debt instrument, stated interest rate percentage 2.05%   2.05%    
Maturity Apr. 30, 2021        
Total debt $ 698,000,000 696,000,000      
Senior notes | 2.45% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 1,000,000,000        
Debt instrument, stated interest rate percentage 2.45%   2.45%    
Maturity - Maximum Date Oct. 01, 2022        
Total debt $ 1,023,000,000 979,000,000      
Senior notes | A235 Senior Notes [Member]          
Debt Instrument [Line Items]          
Principal Amount $ 600,000,000        
Debt instrument, stated interest rate percentage 2.35%   2.35%    
Maturity May 31, 2022        
Total debt $ 597,000,000 597,000,000      
Senior notes | 2.500% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 1,000,000,000        
Debt instrument, stated interest rate percentage 2.50%   2.50%    
Maturity Apr. 30, 2023        
Total debt $ 994,000,000 992,000,000      
Senior notes | 2.800% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 500,000,000        
Debt instrument, stated interest rate percentage 2.80%   2.80%    
Maturity Nov. 30, 2024        
Total debt $ 496,000,000 495,000,000      
Senior notes | 2.40% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 500,000,000        
Debt instrument, stated interest rate percentage 2.40%   2.40%    
Maturity Dec. 31, 2026        
Total debt $ 498,000,000 497,000,000      
Senior notes | 3.050% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 1,000,000,000        
Debt instrument, stated interest rate percentage 3.05%   3.05%    
Maturity Nov. 30, 2027        
Total debt $ 991,000,000 990,000,000      
Senior notes | 6.20% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 1,500,000,000        
Debt instrument, stated interest rate percentage 6.20%   6.20%    
Maturity Dec. 31, 2038        
Total debt $ 1,482,000,000 1,482,000,000      
Senior notes | 4.875% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 500,000,000        
Debt instrument, stated interest rate percentage 4.875%   4.875%    
Maturity Dec. 31, 2040        
Total debt $ 490,000,000 489,000,000      
Senior notes | 3.625% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 375,000,000        
Debt instrument, stated interest rate percentage 3.625%   3.625%    
Maturity Dec. 31, 2042        
Total debt $ 368,000,000 368,000,000      
Senior notes | 3.40% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 500,000,000        
Debt instrument, stated interest rate percentage 3.40%   3.40%    
Maturity Dec. 31, 2046        
Total debt $ 491,000,000 491,000,000      
Senior notes | 3.750% senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 1,150,000,000        
Debt instrument, stated interest rate percentage 3.75%   3.75%    
Maturity Nov. 30, 2047        
Total debt $ 1,136,000,000 1,135,000,000      
Senior notes | Floating rate senior notes maturing 2021          
Debt Instrument [Line Items]          
Principal Amount $ 350,000,000        
Maturity Apr. 30, 2021        
Total debt $ 349,000,000 348,000,000      
Senior notes | Floating rate senior notes maturing 2022          
Debt Instrument [Line Items]          
Principal Amount $ 400,000,000        
Maturity May 31, 2022        
Total debt $ 399,000,000 398,000,000      
Senior notes | Floating rate senior notes maturing 2023          
Debt Instrument [Line Items]          
Principal Amount $ 500,000,000        
Maturity Apr. 30, 2023        
Total debt $ 499,000,000 496,000,000      
Senior notes | Floating rate senior notes maturing 2049-2067          
Debt Instrument [Line Items]          
Principal Amount $ 1,042,000,000        
Maturity - Minimum Date Dec. 31, 2049        
Maturity - Maximum Date Dec. 31, 2067        
Total debt $ 1,029,000,000 1,032,000,000      
Senior notes | 8.375% debentures Due 2020          
Debt Instrument [Line Items]          
Principal Amount $ 424,000,000        
Debt instrument, stated interest rate percentage 8.375%   8.375%    
Maturity Dec. 31, 2020        
Total debt $ 419,000,000 447,000,000      
Senior notes | 8.375% debentures Due 2030          
Debt Instrument [Line Items]          
Principal Amount $ 276,000,000        
Debt instrument, stated interest rate percentage 8.375%   8.375%    
Maturity Dec. 31, 2030        
Total debt $ 274,000,000 282,000,000      
Senior notes | Canadian Senior Note 2.125 Note [Member]          
Debt Instrument [Line Items]          
Principal Amount $ 551,000,000        
Debt instrument, stated interest rate percentage 2.125%   2.125%    
Maturity Dec. 31, 2024        
Total debt $ 548,000,000 593,000,000      
Pound Sterling notes | 5.50% Pound Sterling Notes          
Debt Instrument [Line Items]          
Principal Amount $ 84,000,000        
Debt instrument, stated interest rate percentage 5.50%   5.50%    
Maturity Dec. 31, 2031        
Total debt $ 84,000,000 84,000,000      
Pound Sterling notes | Pound Sterling Notes 5 Point 13 Percent [Member]          
Debt Instrument [Line Items]          
Principal Amount $ 577,000,000        
Debt instrument, stated interest rate percentage 5.125%   5.125%    
Maturity Dec. 31, 2050        
Total debt $ 546,000,000 586,000,000      
Euro Senior Notes | 0.375% Euro Senior Notes          
Debt Instrument [Line Items]          
Principal Amount $ 803,000,000     € 700,000,000  
Debt instrument, stated interest rate percentage 0.375%   0.375% 0.375%  
Maturity Dec. 31, 2023        
Total debt $ 797,000,000 832,000,000      
Euro Senior Notes | 1.625% euro senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 803,000,000        
Debt instrument, stated interest rate percentage 1.625%   1.625%    
Maturity Dec. 31, 2025        
Total debt $ 798,000,000 833,000,000      
Euro Senior Notes | 1.000% euro senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 573,000,000   € 500,000,000    
Debt instrument, stated interest rate percentage 1.00%   1.00%    
Maturity Nov. 30, 2028        
Total debt $ 570,000,000 595,000,000      
Euro Senior Notes | 1.500% euro senior notes          
Debt Instrument [Line Items]          
Principal Amount $ 573,000,000     € 500,000,000  
Debt instrument, stated interest rate percentage 1.50%   1.50% 1.50%  
Maturity Dec. 31, 2032        
Total debt $ 569,000,000 594,000,000      
Euro Senior Notes | Floating Rate Euro Senior Notes          
Debt Instrument [Line Items]          
Principal Amount $ 573,000,000        
Maturity Dec. 31, 2020        
Total debt $ 572,000,000 598,000,000      
Capital lease obligations          
Debt Instrument [Line Items]          
Principal Amount $ 534,000,000        
Maturity - Minimum Date Dec. 31, 2018        
Maturity - Maximum Date Dec. 31, 3005        
Total debt $ 534,000,000 500,000,000      
Facility notes and bonds          
Debt Instrument [Line Items]          
Principal Amount $ 320,000,000        
Maturity - Minimum Date Dec. 31, 2029        
Maturity - Maximum Date Dec. 31, 2045        
Total debt $ 320,000,000 319,000,000      
Other debt          
Debt Instrument [Line Items]          
Principal Amount $ 13,000,000        
Maturity - Minimum Date Dec. 31, 2018        
Maturity - Maximum Date Dec. 31, 2022        
Total debt $ 13,000,000 $ 19,000,000