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 |  |  |  |  |  |  |  |  |

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