v3.6.0.2

Debt - Schedule of Long-Term Debt (Detail) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015
Debt Instrument [Line Items] |  |  |
Average rate of interest |  | 3.70% |
Principal amount outstanding |  | $ 9,361,000,000 | $ 9,343,000,000
Due in 2017 |  | 421,000,000 |
Due after 2017 |  | 8,955,000,000 |
Due after 2021 |  | $ 2,800,000,000 |
Average remaining term (in years) |  | 4 years 1 month 6 days |
Revolving Credit Facility [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Range of interest rates | [1] | 0.00% |
Average rate of interest | [1] | 0.00% |
Principal amount outstanding | [1] | $ 0 | 0
Due in 2017 | [1] | 0 |
Due after 2017 | [1] | 0 |
Due after 2021 | [1] | $ 0 |
Average remaining term (in years) | [1] | 0 years |
Notes Payable to Banks [Member] | USD Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Average rate of interest |  | 4.10% |
Principal amount outstanding |  | $ 8,211,000,000 | 8,193,000,000
Due in 2017 |  | 406,000,000 |
Due after 2017 |  | 7,805,000,000 |
Due after 2021 |  | $ 2,800,000,000 |
Average remaining term (in years) |  | 4 years 2 months 12 days |
Notes Payable to Banks [Member] | USD Notes [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Range of interest rates |  | 2.80% |
Notes Payable to Banks [Member] | USD Notes [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Range of interest rates |  | 5.80% |
Convertible Debt [Member] | 2019 Cash Convertible Senior Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Average rate of interest |  | 1.00% |
Principal amount outstanding |  | $ 1,150,000,000 | 1,150,000,000
Due in 2017 |  | 0 |
Due after 2017 |  | 1,150,000,000 |
Due after 2021 |  | $ 0 |
Average remaining term (in years) |  | 2 years 10 months 24 days |
Convertible Debt [Member] | 2019 Cash Convertible Senior Notes [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Range of interest rates |  | 1.00% |
Convertible Debt [Member] | 2019 Cash Convertible Senior Notes [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Range of interest rates |  | 1.00% |
Bank Borrowings [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Range of interest rates |  | 0.00% |
Average rate of interest |  | 0.00% |
Principal amount outstanding |  | $ 0 | 0
Due in 2017 |  | 0 |
Due after 2017 |  | 0 |
Due after 2021 |  | $ 0 |
Average remaining term (in years) |  | 0 years |
Capital Lease [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Average rate of interest |  | 3.00% |
Principal amount outstanding |  | $ 15,000,000 | $ 31,000,000
Due in 2017 |  | 15,000,000 |
Due after 2017 |  | 0 |
Due after 2021 |  | $ 0 |
Average remaining term (in years) |  | 1 year 3 months 18 days |
Capital Lease [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Range of interest rates |  | 2.50% |
Capital Lease [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Range of interest rates |  | 13.80% |
[1] | We do not have any borrowings under the $600 million Revolving Credit Facility as of December 31, 2016.

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