Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 444	$ 360	$ 85
Other comprehensive (loss) income, net of tax
Foreign currency translation (loss) gain, net of tax effect of $(6), $47 and $-	(100)	180	(138)
Unrealized (loss) gain on financial assets/liabilities designated as hedging instruments, net of tax effect of $(1), $(1) and $-	(6)	5	(7)
Defined benefit plans adjustment, net of tax effect of $23, $(29) and $(4)	(91)	90	4
Other comprehensive (loss) income	(197)	275	(141)
Comprehensive income (loss)	247	635	(56)
Less: Comprehensive (loss) income attributable to noncontrolling interests	(5)	72	(3)
Comprehensive income (loss) attributable to XPO	$ 252	$ 563	$ (53)