Reduction in derivative effective interest rate.

No definition available.

Name:	apg_ReductionInDerivativeEffectiveInterestRate
Namespace Prefix:	apg_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Reduction in interest expense.

+ References

No definition available.

+ Details

Name:	apg_ReductionInInterestExpense
Namespace Prefix:	apg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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

Name:	us-gaap_DerivativeInstrumentsGainLossLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the derivative contract matures, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeMaturityDates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

+ Details

Name:	us-gaap_DerivativeNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value of all derivative assets designated as fair value hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959

+ Details

Name:	us-gaap_FairValueHedgeAssetsAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.

+ References

No definition available.

+ Details

Name:	us-gaap_OtherOperatingIncomeExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959

+ Details

Name:	us-gaap_UnrealizedGainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=apg_TwoThousandTwentyFourInterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=apg_TwoThousandTwentySixInterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=apg_TwoThousandTwentyEightInterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=apg_ForwardStartingSwapsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_NetInvestmentHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CrossCurrencyInterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=apg_SeptemberTwentyThirtyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=apg_SeptemberTwentyTwentySevenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=currency_CAD
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=currency_GBP
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=currency_EUR
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Derivatives - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jan. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	$ 2,309	$ 1,070
Interest Rate Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	$ 1,120
Derivative maturity date	Jan. 31, 2028
Derivative, fixed interest rate	3.46%
2024 Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative maturity date	Oct. 31, 2024
2026 Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	$ 720
Derivative maturity date	Oct. 31, 2026
Derivative, fixed interest rate	3.64%
2028 Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	$ 400
2028 Interest Rate Swap [Member] \| Forward-starting Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	400
Foreign Currency Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other (expense) income, net	(2)	(3)	$ 12
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	$ 2,191	1,070
Designated as Hedging Instrument [Member] \| Net Investment Hedge [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Annual reduction in interest expense		$ 3
Reduction in overall effective interest rate		24.00%
Designated as Hedging Instrument [Member] \| Interest Rate Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt instrument term	4 years
Derivative notional amount	$ 720
Derivative, fixed interest rate	3.64%
Designated as Hedging Instrument [Member] \| 2024 Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	$ 720
Designated as Hedging Instrument [Member] \| Cross Currency Interest Rate Contract [Member] \| September 2030 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount		$ 94
Designated as Hedging Instrument [Member] \| Cross Currency Interest Rate Contract [Member] \| September 2027 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount		26
Designated as Hedging Instrument [Member] \| Cross Currency Interest Rate Contract [Member] \| Net Investment Hedge [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative notional amount	230	$ 230
Unrealized gains on AOCI before taxes	$ 29
Designated as Hedging Instrument [Member] \| Cross Currency Interest Rate Contract [Member] \| Net Investment Hedge [Member] \| CAD
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of hedges				$ 241
Designated as Hedging Instrument [Member] \| Cross Currency Interest Rate Contract [Member] \| Net Investment Hedge [Member] \| GBP
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of hedges				271
Designated as Hedging Instrument [Member] \| Cross Currency Interest Rate Contract [Member] \| Net Investment Hedge [Member] \| EUR
Derivative Instruments, Gain (Loss) [Line Items]
Fair value of hedges				$ 209