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Impairment, Restructuring Charges and Other Related Closure Costs - Changes to Restructuring Provisions Recorded on Consolidated Balance Sheets (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Restructuring Cost and Reserve [Line Items] |  |
Provision, beginning balance | $ 52 | $ 54
Charges incurred | 19 | 52
Adjustment for unused provisions |  | (7)
Amounts paid | (33) | (51)
Currency translation effect | (3) | 4
Provision, ending balance | 35 | 52
Set-top Box Restructuring Plan [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Provision, beginning balance | 39 | 37
Charges incurred | 19 | 36
Adjustment for unused provisions |  | (2)
Amounts paid | (22) | (36)
Currency translation effect | (2) | 4
Provision, ending balance | 34 | 39
$600-650 Million Net Opex Plan [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Provision, beginning balance | 7 | 5
Charges incurred |  | 3
Amounts paid | (7) | (1)
Provision, ending balance |  | 7
Other Restructuring Initiatives [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Provision, beginning balance | 6 | 12
Charges incurred |  | 13
Adjustment for unused provisions |  | (5)
Amounts paid | (4) | (14)
Currency translation effect | (1) |
Provision, ending balance | $ 1 | $ 6

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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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- Definition Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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