Quarterly report pursuant to Section 13 or 15(d)

Carrying Value of Outstanding Debt (Detail)

v3.7.0.1
Carrying Value of Outstanding Debt (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 17,193  
Total debt 17,240 $ 16,075
Less current maturities (4,302) (3,681)
Long-Term Debt 12,938 12,394
Commercial Paper    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 4,242  
Maturity - Minimum Date Mar. 31, 2017  
Maturity - Maximum Date Dec. 31, 2017  
Total debt $ 4,242 3,250
Senior notes | 1.125% senior notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 375  
Maturity - Maximum Date Oct. 01, 2017  
Debt instrument, stated interest rate 1.125%  
Total debt $ 374 374
Senior notes | 5.50% stated rate    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 750  
Maturity - Maximum Date Jan. 15, 2018  
Debt instrument, stated interest rate 5.50%  
Total debt $ 764 769
Senior notes | 5.125% stated rate    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 1,000  
Maturity - Maximum Date Apr. 15, 2019  
Debt instrument, stated interest rate 5.125%  
Total debt $ 1,036 1,043
Senior notes | 3.125% stated rate    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 1,500  
Maturity - Maximum Date Jan. 15, 2021  
Debt instrument, stated interest rate 3.125%  
Total debt $ 1,575 1,584
Senior notes | 2.40 % senior notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount 500  
Total debt 497 497
Senior notes | 2.45% senior notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 1,000  
Maturity - Maximum Date Oct. 01, 2022  
Debt instrument, stated interest rate 2.45%  
Total debt $ 983 986
Senior notes | 6.20% stated rate    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 1,500  
Maturity - Maximum Date Jan. 15, 2038  
Debt instrument, stated interest rate 6.20%  
Total debt $ 1,482 1,481
Senior notes | 4.875% stated rate    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 500  
Maturity - Maximum Date Nov. 15, 2040  
Debt instrument, stated interest rate 4.875%  
Total debt $ 489 489
Senior notes | 3.625% senior notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 375  
Maturity - Maximum Date Oct. 01, 2042  
Debt instrument, stated interest rate 3.625%  
Total debt $ 367 367
Senior notes | 3.40% senior notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount 500  
Total debt 491 491
Senior notes | 8.375% debentures    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 424  
Maturity - Minimum Date Jan. 01, 2020  
Debt instrument, stated interest rate 8.375%  
Total debt $ 458 461
Senior notes | 8.375% debentures    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 276  
Maturity - Maximum Date Jan. 01, 2030  
Debt instrument, stated interest rate 8.375%  
Total debt $ 282 282
Senior notes | Floating rate senior notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 979  
Maturity - Minimum Date Jan. 01, 2049  
Maturity - Maximum Date Mar. 15, 2067  
Total debt $ 969 824
Capital Lease Obligations    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 466  
Maturity - Minimum Date Mar. 31, 2017  
Maturity - Maximum Date Jan. 01, 3005  
Total debt $ 466 447
Pound Sterling notes | 5.50% notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 83  
Maturity - Maximum Date Jan. 01, 2031  
Debt instrument, stated interest rate 5.50%  
Total debt $ 78 76
Pound Sterling notes | 5.125% notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount 566  
Total debt 543 535
Euro Senior Notes | 1.625% Euro Senior Notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount 748  
Long-term Debt $ 742 732
Maturity - Maximum Date Nov. 15, 2025  
Debt instrument, stated interest rate 0.00%  
Euro Senior Notes | 1.000% notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 534  
Long-term Debt 530 523
Euro Senior Notes | Floating rate senior notes    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount 534  
Long-term Debt $ 532 525
Maturity - Maximum Date Jul. 15, 2020  
Facility notes and bonds    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 320  
Maturity - Minimum Date Jan. 01, 2029  
Maturity - Maximum Date Jan. 01, 2045  
Total debt $ 319 319
Other debt    
Debt Instrument [Line Items]    
Debt Instrument, Face Amount $ 21  
Maturity - Minimum Date Mar. 31, 2017  
Maturity - Maximum Date Jan. 01, 2022  
Total debt $ 21 $ 20