Stockholder's Equity (Deficit) - Summary of Ownership of XPO LLC (Details)	9 Months Ended
	Sep. 30, 2024 shares
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Units Owned	48,282,000
XPO Inc.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Units Owned	32,191,000
Noncontrolling Interests
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Units Owned	16,091,000
XPO LLC
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership percentage	100.00%
XPO LLC | XPO Inc.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership percentage	66.70%
XPO LLC | Noncontrolling Interests
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership percentage	33.30%