The total amount of letters of credit that can be issued, subject to the availability of the revolving credit facility.

No definition available.

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- Definition

Base Rate Margin for debt instrument.

+ References

No definition available.

+ Details

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- Definition

Subsequent maximum end of range for Consolidated Total Net Debt Ratio financial covenant for our long term debt.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Initial maximum end of range for Consolidated Total Net Debt Ratio financial covenant for our long term debt.

+ References

No definition available.

+ Details

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- Definition

The amount of quarterly required principal payments the entity is required to make expressed as a percentage of the principal of the debt instrument.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Variable Rate Interest Floor.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of authorized repayments of our existing outstanding debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	atvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The carrying amount of all assets that are pledged as collateral for the payment of the related debt obligation primarily arising from secured borrowings, presented as a percentage of consolidated total assets.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Write Off Of Unamortized Discount (Premium) And Deferred Debt Issuance Costs as a result of extinguishment.

+ References

No definition available.

+ Details

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Namespace Prefix:	atvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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Balance Type:	credit
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- Details

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Debt - Credit Facilities (Details) - USD ($)								1 Months Ended	12 Months Ended
Debt - Credit Facilities (Details) - USD ($)	Sep. 30, 2020	Sep. 30, 2019	Feb. 02, 2017	Sep. 30, 2016	Aug. 23, 2016	May 26, 2016	Feb. 25, 2016	Feb. 28, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Feb. 03, 2017	Mar. 31, 2016	Feb. 23, 2016	Oct. 11, 2013
Debt Instrument [Line Items]
Amount outstanding									$ 4,940,000,000	$ 4,119,000,000
Repayment of long-term debt									6,104,000,000	250,000,000	$ 375,000,000
Write-off of unamortized discount and deferred financing costs					$ 10,000,000
Revolver
Debt Instrument [Line Items]
Amount of letters of credit that can be issued under the Revolver					$ 50,000,000				$ 50,000,000
Credit Facilities
Debt Instrument [Line Items]
Debt covenant, Consolidated Total Net Debt ratio, maximum					400.00%
Debt covenant, Consolidated Total Net Debt ratio, contingent maximum					350.00%
Percentage of consolidated total assets pledged as collateral									67.00%
Credit Facilities \| Original Term Loan
Debt Instrument [Line Items]
Amount outstanding										$ 1,869,000,000
Credit Facilities \| Original Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity															$ 2,500,000,000
Repayment of long-term debt					$ 319,000,000	$ 800,000,000	$ 500,000,000
Credit Facilities \| Original Revolver
Debt Instrument [Line Items]
Maximum borrowing capacity															$ 250,000,000
Credit Facilities \| Revolver
Debt Instrument [Line Items]
Maximum borrowing capacity					250,000,000
Amount drawn									$ 0
Credit Facilities \| Original Tranche A Term Loan
Debt Instrument [Line Items]
Repayment of long-term debt					2,500,000,000
Credit Facilities \| Tranche A Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity														$ 2,300,000,000
Credit Facilities \| Incremental Tranche A Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity													$ 250,000,000
Credit Facilities \| 2016 TLA
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 2,900,000,000
Repayment of long-term debt				$ 167,000,000
Variable rate at end of period									2.02%
Required quarterly principal payment as a percent of stated principal amount				0.625%
Required quarterly repayment amount				$ 18,000,000
Credit Facilities \| 2016 TLA \| Scenario, Forecast
Debt Instrument [Line Items]
Required quarterly principal payment as a percent of stated principal amount	3.125%	1.25%
Credit Facilities \| 2016 TLA \| Federal Funds Rate
Debt Instrument [Line Items]
Base rate margin					0.50%
Credit Facilities \| 2016 TLA \| LIBOR
Debt Instrument [Line Items]
Base rate margin					1.00%
Variable rate interest floor					0.00%
Credit Facilities \| 2016 TLA \| LIBOR \| Minimum
Debt Instrument [Line Items]
Applicable margin (as a percent)					1.125%
Credit Facilities \| 2016 TLA \| LIBOR \| Maximum
Debt Instrument [Line Items]
Applicable margin (as a percent)					2.00%
Credit Facilities \| 2016 TLA \| Base Rate
Debt Instrument [Line Items]
Variable rate interest floor					1.00%
Credit Facilities \| 2016 TLA \| Base Rate \| Minimum
Debt Instrument [Line Items]
Applicable margin (as a percent)					0.125%
Credit Facilities \| 2016 TLA \| Base Rate \| Maximum
Debt Instrument [Line Items]
Applicable margin (as a percent)					1.00%
Subsequent Events \| Credit Facilities
Debt Instrument [Line Items]
Repayment of long-term debt								$ 500,000,000
Authorized debt repayments			$ 500,000,000
Subsequent Events \| Credit Facilities \| 2016 TLA
Debt Instrument [Line Items]
Repayment of long-term debt								$ 139,000,000
Subsequent Events \| Credit Facilities \| 2017 TLA
Debt Instrument [Line Items]
Maximum borrowing capacity												$ 2,550,000,000