Debt Instrument, Credit Spread Adjustment

No definition available.

Name:	flex_DebtInstrumentCreditSpreadAdjustment
Namespace Prefix:	flex_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Interest Rate Applicable Margin Adjustment Percentage

+ References

No definition available.

+ Details

Name:	flex_DebtInstrumentInterestRateApplicableMarginAdjustmentPercentage
Namespace Prefix:	flex_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Interest Rate Applicable Margin Per Annum

+ References

No definition available.

+ Details

Name:	flex_DebtInstrumentInterestRateApplicableMarginPerAnnum
Namespace Prefix:	flex_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Interest Rate, Margin

+ References

No definition available.

+ Details

Name:	flex_DebtInstrumentInterestRateMargin
Namespace Prefix:	flex_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Variable Rate Basis

+ References

No definition available.

+ Details

Name:	flex_DebtInstrumentVariableRateBasis
Namespace Prefix:	flex_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line Of Credit Facility, Commitment Fee Upward Or Downward Sustainability Adjustments, Percentage

+ References

No definition available.

+ Details

Name:	flex_LineOfCreditFacilityCommitmentFeeUpwardOrDownwardSustainabilityAdjustmentsPercentage
Namespace Prefix:	flex_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility Interest Rate Margins Upward Or Downward Sustainability Adjustments Percentage

+ References

No definition available.

+ Details

Name:	flex_LineOfCreditFacilityInterestRateMarginsUpwardOrDownwardSustainabilityAdjustmentsPercentage
Namespace Prefix:	flex_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility, Usage Fee Upward Or Downward Sustainability Adjustments, Percentage

+ References

No definition available.

+ Details

Name:	flex_LineOfCreditFacilityUsageFeeUpwardOrDownwardSustainabilityAdjustmentsPercentage
Namespace Prefix:	flex_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

+ Details

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

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6036836-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

Name:	us-gaap_LongtermDebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=flex_NextrackerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=flex_SwingLineLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=flex_CreditAgreementWhichMaturesInJuly2027Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	flex_CreditFacilityInterestRateOptionsAxis=flex_CreditFacilityInterestRateOptionOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	flex_CreditFacilityInterestRateOptionsAxis=flex_CreditFacilityInterestRateOptionTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=flex_SecuredOvernightFinancingRateSOFRMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=flex_SterlingOvernightIndexAverageLoansRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=flex_CreditAgreementWhichMaturesInJanuary2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=flex_NextrackerTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=flex_A2023CreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=flex_EuroInterbankOfferedRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

BANK BORROWINGS AND LONG-TERM DEBT - Narrative (Details) - USD ($)	1 Months Ended		12 Months Ended
	Feb. 28, 2023	Jul. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2022
Bank borrowings and long-term debt
Borrowings outstanding			$ 0	$ 0
Proceeds from bank borrowings and long-term debt			718,000,000	$ 759,000,000	$ 2,065,000,000
Credit facility, remaining borrowing capacity			$ 317,000,000
Weighted-average interest rate			4.70%	4.00%
Revolving Credit Facility \| Nextracker
Bank borrowings and long-term debt
Credit facility, maximum borrowing capacity	$ 500,000,000
Debt instrument term	5 years
Credit facility, current borrowing capacity	$ 300,000,000
Swing Line Loans \| Nextracker
Bank borrowings and long-term debt
Credit facility, current borrowing capacity	50,000,000
2027 Credit Facility \| Line of Credit
Bank borrowings and long-term debt
Credit facility, maximum borrowing capacity		$ 2,500,000,000
Borrowings outstanding			$ 0	$ 0
2027 Credit Facility \| Line of Credit \| Revolving Credit Facility
Bank borrowings and long-term debt
Credit facility, maximum borrowing capacity		$ 2,500,000,000
2027 Credit Facility \| Line of Credit \| Revolving Credit Facility \| Minimum
Bank borrowings and long-term debt
Line of credit facility, commitment fee percentage		0.125%
2027 Credit Facility \| Line of Credit \| Revolving Credit Facility \| Maximum
Bank borrowings and long-term debt
Line of credit facility, commitment fee percentage		0.275%
2027 Credit Facility \| Line of Credit \| Revolving Credit Facility \| Credit Facility Interest Rate Option One \| Minimum
Bank borrowings and long-term debt
Debt instrument, interest rate applicable margin per annum		0.125%
2027 Credit Facility \| Line of Credit \| Revolving Credit Facility \| Credit Facility Interest Rate Option One \| Maximum
Bank borrowings and long-term debt
Debt instrument, interest rate applicable margin per annum		0.75%
2027 Credit Facility \| Line of Credit \| Revolving Credit Facility \| Credit Facility Interest Rate Option Two \| Minimum
Bank borrowings and long-term debt
Debt instrument, interest rate applicable margin per annum		1.125%
2027 Credit Facility \| Line of Credit \| Revolving Credit Facility \| Credit Facility Interest Rate Option Two \| Maximum
Bank borrowings and long-term debt
Debt instrument, interest rate applicable margin per annum		1.75%
2027 Credit Facility \| Line of Credit \| Revolving Credit Facility \| Base Rate
Bank borrowings and long-term debt
Debt instrument, basis spread on variable rate (as a percent)		1.00%
2027 Credit Facility \| Line of Credit \| Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR)
Bank borrowings and long-term debt
Debt instrument, interest rate applicable margin adjustment percentage		0.10%
2027 Credit Facility \| Line of Credit \| Revolving Credit Facility \| Sterling Overnight Index Average Loans Rate
Bank borrowings and long-term debt
Debt instrument, interest rate applicable margin adjustment percentage		0.0326%
2027 Credit Facility \| Line of Credit \| Swing Line Loans
Bank borrowings and long-term debt
Credit facility, maximum borrowing capacity		$ 360,000,000
2027 Credit Facility \| Line of Credit \| Letter of Credit
Bank borrowings and long-term debt
Credit facility, maximum borrowing capacity		$ 175,000,000
Line of credit facility, unused capacity, commitment fee percentage		0.125%
Line of credit facility, usage fee upward or downward sustainability adjustments, percentage		0.05%
Line of credit facility, interest rate margins upward or downward sustainability adjustments, percentage		0.05%
Line of credit facility, commitment fee upward or downward sustainability adjustments, percentage		0.01%
2027 Credit Facility \| Line of Credit \| Letter of Credit \| Minimum
Bank borrowings and long-term debt
Line of credit facility, commitment fee percentage		1.125%
2027 Credit Facility \| Line of Credit \| Letter of Credit \| Maximum
Bank borrowings and long-term debt
Line of credit facility, commitment fee percentage		1.75%
Credit Agreement which Matures in January 2026 \| Line of Credit \| Revolving Credit Facility
Bank borrowings and long-term debt
Credit facility, maximum borrowing capacity						$ 2,000,000,000
Nextracker Term Loan \| Term Loan
Bank borrowings and long-term debt
Debt, face amount	$ 150,000,000
Debt instrument term	5 years
Effective interest rate			5.12%
Debt variable rate basis			3.49%
Debt instrument, interest rate, margin			1.63%
Nextracker Term Loan \| Term Loan \| Nextracker
Bank borrowings and long-term debt
Debt, face amount	$ 150,000,000
Proceeds from bank borrowings and long-term debt	$ 150,000,000
2023 Credit Facility
Bank borrowings and long-term debt
Debt instrument, credit spread adjustment	0.10%
2023 Credit Facility \| Base Rate \| Minimum
Bank borrowings and long-term debt
Debt instrument, basis spread on variable rate (as a percent)	0.625%
2023 Credit Facility \| Base Rate \| Maximum
Bank borrowings and long-term debt
Debt instrument, basis spread on variable rate (as a percent)	1.00%
2023 Credit Facility \| Secured Overnight Financing Rate (SOFR) \| Minimum
Bank borrowings and long-term debt
Debt instrument, basis spread on variable rate (as a percent)	1.625%
2023 Credit Facility \| Secured Overnight Financing Rate (SOFR) \| Maximum
Bank borrowings and long-term debt
Debt instrument, basis spread on variable rate (as a percent)	2.00%
2023 Credit Facility \| Revolving Credit Facility \| Minimum
Bank borrowings and long-term debt
Line of credit facility, commitment fee percentage	0.20%
2023 Credit Facility \| Revolving Credit Facility \| Maximum
Bank borrowings and long-term debt
Line of credit facility, commitment fee percentage	0.35%
2023 Credit Facility \| Revolving Credit Facility \| Euro Interbank Offered Rate \| Minimum
Bank borrowings and long-term debt
Debt instrument, basis spread on variable rate (as a percent)	1.625%
2023 Credit Facility \| Revolving Credit Facility \| Euro Interbank Offered Rate \| Maximum
Bank borrowings and long-term debt
Debt instrument, basis spread on variable rate (as a percent)	2.00%