Consolidated Statements of Equity - USD ($) $ in Millions	Total	C&W Barbados NCI Acquisition	UTS Acquisition	C&W Jamaica NCI Acquisition	LPR NCI Acquisition	UTS NCI Acquisition	Cabletica	Class C	Total Liberty Latin America shareholders	Total Liberty Latin America shareholders C&W Barbados NCI Acquisition	Total Liberty Latin America shareholders C&W Jamaica NCI Acquisition	Total Liberty Latin America shareholders LPR NCI Acquisition	Total Liberty Latin America shareholders UTS NCI Acquisition	Common shares Class A	Common shares Class B	Common shares Class C	Common shares Class C LPR NCI Acquisition	Additional paid-in capital	Additional paid-in capital C&W Jamaica NCI Acquisition	Additional paid-in capital LPR NCI Acquisition	Additional paid-in capital UTS NCI Acquisition	Accumulated net contributions (distributions)	Accumulated net contributions (distributions) C&W Barbados NCI Acquisition	Accumulated deficit	Accumulated other comprehensive loss, net of taxes	Accumulated other comprehensive loss, net of taxes C&W Jamaica NCI Acquisition	Non- controlling interests	Non- controlling interests C&W Barbados NCI Acquisition	Non- controlling interests UTS Acquisition	Non- controlling interests C&W Jamaica NCI Acquisition	Non- controlling interests LPR NCI Acquisition	Non- controlling interests UTS NCI Acquisition	Non- controlling interests Cabletica
Beginning balance at Dec. 31, 2016	$ 5,660.4								$ 4,179.6					$ 0.0	$ 0.0	$ 0.0		$ 0.0				$ 4,428.9		$ (232.6)	$ (16.7)		$ 1,480.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(798.7)								(778.1)															(778.1)			(20.6)
Other comprehensive earnings (loss)	(46.6)								(47.5)																(47.5)		0.9
Change in capitalization in connection with the Split-Off	0.0													0.5		1.2		4,402.8				(4,404.5)
Distributions to noncontrolling interest owners	(45.9)	$ (39.6)								$ 14.6													$ 14.6				(45.9)	$ (54.2)
Distributions to Liberty Global	(53.2)								(53.2)													(53.2)
Share-based compensation	12.0								12.0													12.0
Other, net	2.2								2.2													2.2
Ending balance at Dec. 31, 2017	4,690.6								3,329.6					0.5	0.0	1.2		4,402.8				0.0		(1,010.7)	(64.2)		1,361.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at January 1, 2018, as adjusted for accounting change	4,683.1								3,318.5					0.5	0.0	1.2		4,402.8						(1,021.8)	(64.2)		1,364.6
Net loss	(635.8)								(345.2)															(345.2)			(290.6)
Other comprehensive earnings (loss)	39.4								40.7																40.7		(1.3)
Impact of the Cabletica Acquisition							$ 25.1																										$ 25.1
Capital contributions from noncontrolling interest owner	18.0																										18.0
Distributions to noncontrolling interest owners	(22.7)			$ (21.6)	$ 0.0						$ (6.5)	$ 68.3					$ 0.1		$ (13.7)	$ 68.2						$ 7.2	(22.7)			$ (15.1)	$ (68.3)
Distributions to Liberty Global																						$ (53.2)
Share-based compensation	36.3								35.2									35.2									1.1
Other, net	1.6								1.6									1.6
Ending balance at Dec. 31, 2018	4,123.4								3,112.6					0.5	0.0	1.3		4,494.1						(1,367.0)	(16.3)		1,010.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(182.4)								(80.1)															(80.1)			(102.3)
Other comprehensive earnings (loss)	1.2								1.5																1.5		(0.3)
Impact of the Cabletica Acquisition			$ 11.6																										$ 11.6
Distributions to noncontrolling interest owners	(37.7)					$ (11.6)							$ 0.1								$ 0.1						(37.7)					$ (11.7)
Conversion Option, net	77.3								77.3									77.3
Capped Calls	(45.6)							$ (46.0)	(45.6)									(45.6)
Share-based compensation	44.0																	44.0
Other, net	(0.3)																										(0.3)
Ending balance at Dec. 31, 2019	$ 3,979.9								$ 3,109.8					$ 0.5	$ 0.0	$ 1.3		$ 4,569.9						$ (1,447.1)	$ (14.8)		$ 870.1