Accumulated Other Comprehensive Earnings (Statements of Comprehensive Earnings (Loss)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), pre-tax amount	$ 1,642.1	$ (3,373.8)	$ 209.4
Other comprehensive income (loss), tax benefit (expense)	14.0	(2.8)	(9.1)
Other comprehensive earnings (loss)	1,656.1	(3,376.6)	200.3
Other comprehensive earnings attributable to noncontrolling interests, Pre-tax amount	0.9	(2.9)	(1.6)
Other comprehensive earnings attributable to noncontrolling interests, Tax benefit (expense)	(0.1)	0.7	0.4
Other comprehensive earnings attributable to noncontrolling interests, net	0.8	(2.2)	(1.2)
Other comprehensive earnings (loss) attributable to Liberty Latin America shareholders, pre-tax	1,643.0	(3,376.7)	207.8
Other comprehensive earnings (loss) attributable to Liberty Latin America shareholders, tax	13.9	(2.1)	(8.7)
Other comprehensive earnings (loss) attributable to Liberty Latin America shareholders, net	1,656.9	(3,378.8)	199.1
Continuing Operations
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), pre-tax amount		(3,329.4)	269.3
Other comprehensive income (loss), tax benefit (expense)		(2.8)	(9.1)
Other comprehensive earnings (loss)		(3,332.2)	260.2
Discontinued Operations
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), pre-tax amount		(44.4)	(59.9)
Other comprehensive income (loss), tax benefit (expense)		0.0	0.0
Other comprehensive earnings (loss)		(44.4)	(59.9)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), pre-tax amount	1,780.3	(3,216.1)	129.4
Other comprehensive income (loss), tax benefit (expense)	(1.9)	1.3	1.2
Other comprehensive earnings (loss)	1,778.4	(3,214.8)	130.6
Pension-related adjustments and other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), pre-tax amount	(138.2)	(113.3)	139.9
Other comprehensive income (loss), tax benefit (expense)	15.9	(4.1)	(10.3)
Other comprehensive earnings (loss)	$ (122.3)	$ (117.4)	$ 129.6