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

No definition available.

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

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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 http://asc.fasb.org/extlink&oid=6877327&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 http://asc.fasb.org/extlink&oid=6876686&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 http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

+ Details

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

- Definition

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.

+ References

No definition available.

+ Details

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

- 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

Fixed Charge Coverage Ratio

+ References

No definition available.

+ Details

Name:	xpo_FixedChargeCoverageRatio
Namespace Prefix:	xpo_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Line Of Credit Facility, Borrowing Base, Maximum Portion Attributable To Equipment And Rolling Stock, Percentage

+ References

No definition available.

+ Details

Name:	xpo_LineOfCreditFacilityBorrowingBaseMaximumPortionAttributableToEquipmentAndRollingStockPercentage
Namespace Prefix:	xpo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Capacity Available for Swing Line Loans

+ References

No definition available.

+ Details

Name:	xpo_LineofCreditFacilityCapacityAvailableforSwingLineLoans
Namespace Prefix:	xpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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

- Details

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

Debt - ABL Facility (Details)		1 Months Ended
Debt - ABL Facility (Details)	Apr. 30, 2019 USD ($)	Oct. 31, 2015 USD ($)	Dec. 31, 2019 USD ($)
LIBOR \| Minimum
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate	1.25%
LIBOR \| Maximum
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate	1.50%
Base Rate \| Minimum
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate	0.25%
Base Rate \| Maximum
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate	0.50%
ABL facility
Debt Instrument [Line Items]
Secured revolving loan credit agreement amount	$ 1,100,000,000	$ 1,000,000,000.0
Letter of credit available for issuance (up to)		350,000,000
Swing line loans available for issuance (up to)		$ 50,000,000
Percentage of maximum portion of borrowing base attributable to equipment and rolling stock		20.00%
Line of credit facility, borrowing base			$ 927,000,000
Remaining borrowing availability			713,000,000
Line of credit facility, amount drawn			$ 214,000,000
ABL facility \| Maximum
Debt Instrument [Line Items]
Fixed charge coverage ratio (not less than)			1.00
ABL facility \| LIBOR \| Minimum
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate		1.50%
ABL facility \| LIBOR \| Maximum
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate		2.00%
ABL facility \| Base Rate \| Minimum
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate		0.50%
ABL facility \| Base Rate \| Maximum
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate		1.00%