v3.6.0.2
Debt - Additional Information (Detail) - USD ($)
$ / shares in Units, shares in Thousands
12 Months Ended
Sep. 22, 2016
Aug. 11, 2016
Aug. 01, 2016
May 23, 2016
Apr. 27, 2016
Feb. 23, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Jan. 01, 2016
Nov. 30, 2014
Debt Instrument [Line Items]                      
Short-term bank borrowings               $ 6,000,000      
Weighted average interest rate               2.50%      
Book value of outstanding long-term debt             $ 8,766,000,000 $ 8,656,000,000      
Debt issuance costs             61,000,000        
Debt discount             $ 128,000,000 167,000,000      
Remaining tenor of debt             4 years 1 month 6 days        
Interest accrued for debt             $ 48,000,000 46,000,000      
Principal amount of debt             9,361,000,000 9,343,000,000      
Repayment of term loan             38,000,000 32,000,000 $ 15,000,000    
Annual repayment of Term Loan             18,000,000        
Portion of principal amount of long-term and short-term debt, secured by collateral             $ 2,211,000,000 4,943,000,000      
Debt instrument trading price, percentage             98.00%        
Cash proceeds from the sale of the warrants                 $ 134,000,000    
Minimum [Member]                      
Debt Instrument [Line Items]                      
Common stock exchange percentage threshold             50.00%        
Percentage of consideration received by share holders             90.00%        
Warrant [Member]                      
Debt Instrument [Line Items]                      
Issue of warrants to purchase shares of common stock             11,180        
Exercise price             $ 133.32        
Warrants expiration date             Mar. 02, 2020        
Warrants expiration extended date             Apr. 30, 2020        
Cash proceeds from the sale of the warrants             $ 134,000,000        
Carrying value of the warrants                   $ 168,000,000  
Dollar Denominated Revolving Credit Facilities [Member]                      
Debt Instrument [Line Items]                      
Revolving credit facility             $ 600,000,000        
Senior Secured Term Loan B Due 2020 [Member]                      
Debt Instrument [Line Items]                      
Principal amount of debt $ 1,440,000,000                    
Senior Secured Term Loan Due 2020 [Member]                      
Debt Instrument [Line Items]                      
Repayment of term loan $ 1,440,000,000                    
Notes due date             Dec. 07, 2020        
2021 Additional Senior Unsecured Notes [Member]                      
Debt Instrument [Line Items]                      
Principal amount of debt     $ 500,000,000                
Fixed rate on notes     4.125%                
Additional notes issued price as percentage     101.875%                
Senior Notes Due 2021 [Member]                      
Debt Instrument [Line Items]                      
Fixed rate on notes             4.125%        
Debt issuance date             May 23, 2016        
Fixed-Rate 4.125% Senior Unsecured Notes Maturing in June 2021 [Member]                      
Debt Instrument [Line Items]                      
Principal amount of debt       $ 850,000,000     $ 1,350,000,000 0      
Notes due date       Jun. 01, 2021              
Fixed rate on notes             4.125%        
Fair value of debt       $ 850,000,000              
Fixed-Rate 4.625% Senior Unsecured Notes Maturing in June 2023 [Member]                      
Debt Instrument [Line Items]                      
Principal amount of debt       $ 900,000,000     $ 900,000,000 0      
Notes due date       Jun. 01, 2023              
Fixed rate on notes             4.625%        
Fair value of debt       $ 900,000,000              
2021 and 2023 Senior Unsecured Notes [Member]                      
Debt Instrument [Line Items]                      
Debt instrument, frequency of periodic payment             Semi-annually on June 1 and December 1 of each year        
Debt instrument, date of first required payment             Dec. 01, 2016        
Fixed-Rate 3.5% Senior Unsecured Notes Maturing in September 2016 [Member]                      
Debt Instrument [Line Items]                      
Principal amount of debt             $ 0 500,000,000      
Fixed rate on notes             3.50%        
Repayment of senior debt     $ 200,000,000   $ 100,000,000 $ 200,000,000          
Fixed-Rate 3.875% Senior Unsecured Notes Maturing in September 2022 [Member]                      
Debt Instrument [Line Items]                      
Principal amount of debt   $ 1,000,000,000         $ 1,000,000,000 0      
Notes due date             Sep. 01, 2022        
Fixed rate on notes             3.875%        
Debt instrument, frequency of periodic payment             Semi-annually on March 1 and September 1 of each year        
Debt instrument, date of first required payment             Mar. 01, 2017        
Fair value of debt   1,000,000,000                  
2019 Cash Convertible Senior Notes [Member]                      
Debt Instrument [Line Items]                      
Debt discount             $ (136,000,000) (178,000,000)      
Principal amount of debt             $ 1,150,000,000 1,150,000,000     $ 1,150,000,000
Notes due date             Dec. 01, 2019        
Debt instrument, interest rate                     1.00%
Fees and expenses capitalized as deferred financing costs             $ 16,000,000        
Debt instrument trading price, percentage             130.00%        
Initial cash conversion rate, shares             9.7236        
Initial cash conversion price, debt             $ 1,000        
Cash conversion price             $ 102.84        
Minimum principal amount on fundamental change repurchase date             $ 200,000        
Cash Convertible Senior Notes, Description             If a "fundamental change" (as defined below in this section) occurs at any time, holders will have the right, at their option, to require us to repurchase for cash all of their 2019 Cash Convertible Senior Notes, or any portion of the principal thereof that is equal to $1,000 or a multiple of $1,000 (provided that the portion of any global note or certified note, as applicable, not tendered for repurchase has a principal amount of at least $200,000, on the fundamental change repurchase date.        
Fair value of Cash Convertible Senior Notes             $ 1,310,000,000        
2019 Cash Convertible Senior Notes [Member] | Level II [Member]                      
Debt Instrument [Line Items]                      
Fair value of notes             258,000,000 241,000,000      
Loss on embedded cash conversion option             $ 17,000,000 38,000,000      
Fixed Rate Notes [Member]                      
Debt Instrument [Line Items]                      
Percentage of total notes             76.00%        
Floating Rate Notes [Member]                      
Debt Instrument [Line Items]                      
Percentage of total notes             24.00%        
Secured Debt [Member]                      
Debt Instrument [Line Items]                      
Remaining tenor of debt             4 years 1 month 6 days        
Notes Hedges [Member]                      
Debt Instrument [Line Items]                      
Aggregate cost of the Notes Hedges             $ 208,000,000        
Estimated fair value of the Notes Hedges             $ 258,000,000 $ 241,000,000      
Senior Notes Due Two Thousand Sixteen [Member] | 2021 Additional Senior Unsecured Notes [Member]                      
Debt Instrument [Line Items]                      
Repayment of senior debt     $ 200,000,000                
Senior Secured Term Loan B Due 2020 [Member] | 2021 and 2023 Senior Unsecured Notes [Member]                      
Debt Instrument [Line Items]                      
Repayment of term loan       1,250,000,000              
2021 Senior Unsecured Notes [Member] | 2021 and 2023 Senior Unsecured Notes [Member]                      
Debt Instrument [Line Items]                      
Repayment of senior debt       $ 500,000,000              
Senior Secured Notes Due Two Thousand Twenty Two [Member] | Fixed-Rate 3.875% Senior Unsecured Notes Maturing in September 2022 [Member]                      
Debt Instrument [Line Items]                      
Repayment of senior debt   $ 960,000,000