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Impairment, Restructuring Charges and Other Related Closure Costs - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) Employees | Dec. 31, 2016 USD ($) Employees | Dec. 31, 2014 USD ($) Employees | Dec. 31, 2013 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment charges | $ 2,000,000 |  | $ 8,000,000 |  |
Number of employees affected | Employees |  | 300 |  |  |
Restructuring charges and other related closure costs |  | $ 13,000,000 | 85,000,000 |  |
Expected payment | 22,000,000 | 46,000,000 |  |  |
Restructuring charges and other related closure costs | 33,000,000 |  |  |  |
Other Acquired Intangible Assets [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment charges |  |  | 4,000,000 |  |
Long-lived Asset Impairment Charge [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment charges |  |  | 3,000,000 |  |
Acquired Technologies [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Impairment charges | 2,000,000 |  |  |  |
$600-650 Million Net Opex Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges and other related closure costs |  |  |  | $ 118,000,000 |
Payment to settle a lease provision | 7,000,000 |  |  |  |
$600-650 Million Net Opex Plan [Member] | Minimum [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Net operating expenses |  |  |  |  | $ 600,000,000
$600-650 Million Net Opex Plan [Member] | Maximum [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Net operating expenses |  |  |  |  | $ 650,000,000
$600-650 Million Net Opex Plan [Member] | Contract Termination [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges and other related closure costs |  |  | 1,000,000 |  |
EPS Restructuring Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Number of employees affected | Employees |  |  |  | 450 |
Restructuring charges and other related closure costs |  |  | $ 1,000,000 |  |
Set-top Box Restructuring Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Number of employees affected | Employees |  |  | 1,400 |  |
Restructuring charges and other related closure costs | 170,000,000 |  | $ 83,000,000 |  |
Restructuring Charges recorded | 19,000,000 |  |  |  |
Restructuring Charges incurred | 136,000,000 |  |  |  |
Set-top Box Restructuring Plan [Member] | France [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Number of employees affected | Employees |  |  | 430 |  |
Set-top Box Restructuring Plan [Member] | Asia [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Number of employees affected | Employees |  |  | 670 |  |
Set-top Box Restructuring Plan [Member] | USA [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Number of employees affected | Employees |  |  | 120 |  |
Set-top Box Restructuring Plan [Member] | Employee Termination Benefits [Member] | France [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges and other related closure costs | $ 19,000,000 | $ 34,000,000 |  |  |
Set-top Box Restructuring Plan [Member] | Related to Contracts Continue with No Future Economic Benefits [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges and other related closure costs |  |  | $ 9,000,000 |  |
Set-top Box Restructuring Plan [Member] | Employee Ongoing Termination Benefits [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges and other related closure costs |  |  | $ 74,000,000 |  |

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