Long-lived Assets (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Schedule of PP&E

The details of our property and equipment and the related accumulated depreciation are set forth below:

	Estimated useful life at December 31, 2023	December 31,
		2023		2022
		in millions
Distribution systems	3 to 30 years	$	10,638.0	$	9,134.3
Support equipment, buildings and land	3 to 33 years	4,116.0		4,067.2
Customer premises equipment	4 to 7 years	1,354.7		1,338.1
Total property and equipment, gross		16,108.7		14,539.6
Accumulated depreciation		(8,748.5)		(8,035.1)
Total property and equipment, net		$	7,360.2	$	6,504.5

Schedule of Changes in Carrying Amount of Goodwill

Changes in the carrying amount of our goodwill during 2023 are set forth below:

	January 1, 2023		Acquisitions and related adjustments		Foreign currency translation adjustments and other		December 31, 2023
	in millions
Sunrise	$	6,515.1	$	11.7	$	641.9	$	7,168.7
Telenet	2,480.2		555.1		(58.4)		2,976.9
VM Ireland	259.5		—		8.6		268.1
Central and Other	61.3		—		2.0		63.3
Total	$	9,316.1	$	566.8	$	594.1	$	10,477.0

Changes in the carrying amount of our goodwill during 2022 are set forth below:

	January 1, 2022		Acquisitions and related adjustments		Foreign currency translation adjustments and other		December 31, 2022
	in millions
Sunrise	$	6,590.5	$	—	$	(75.4)	$	6,515.1
Telenet	2,591.8		39.0		(150.6)		2,480.2
VM Ireland	275.9		—		(16.4)		259.5
Central and Other	65.2		—		(3.9)		61.3
Total	$	9,523.4	$	39.0	$	(246.3)	$	9,316.1

Schedule of Intangible Assets Subject to Amortization, Net

The details of our intangible assets subject to amortization are set forth below: 

	Estimated useful life at December 31, 2023	December 31, 2023						December 31, 2022
		Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
		in millions
Customer relationships	5 to 11 years	$	2,489.5	$	(1,370.8)	$	1,118.7	$	2,289.9	$	(932.2)	$	1,357.7
Other	2 to 20 years	1,538.3		(603.4)		934.9		1,467.2		(482.5)		984.7
Total		$	4,027.8	$	(1,974.2)	$	2,053.6	$	3,757.1	$	(1,414.7)	$	2,342.4

Schedule of Amortization Expense Related to Intangible Assets with Finite Lives

Based on our amortizable intangible asset balance at December 31, 2023, we expect that amortization expense will be as follows for the next five years and thereafter (in millions):

2024	$	488.5
2025	482.7
2026	416.9
2027	94.3
2028	90.4
Thereafter	480.8
Total	$	2,053.6