Long-lived Assets (Tables)

12 Months Ended

Dec. 31, 2019

Long-lived Assets [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, 2019	December 31,
		2019			2018
		in millions
Distribution systems	3 to 30 years	$	19,007.2		$	17,845.4
Customer premises equipment	3 to 7 years	4,294.7			4,191.2
Support equipment, buildings and land	2 to 50 years	5,344.3			4,933.7
Total property and equipment, gross		28,646.2			26,970.3
Accumulated depreciation		(14,802.8		)	(13,091.4		)
Total property and equipment, net		$	13,843.4		$	13,878.9

Schedule of Changes in Carrying Amount of Goodwill

Changes in the carrying amount of our goodwill during 2018 are set forth below:

	January 1, 2018		Acquisitions and related adjustments			Foreign currency translation adjustments			December 31, 2018
			in millions
U.K./Ireland	$	8,134.1	$	2.0		$	(465.1	)	$	7,671.0
Belgium	2,681.7		24.9			(130.3		)	2,576.3
Switzerland	2,931.3		(0.3		)	(27.1		)	2,903.9
Central and Eastern Europe	607.0		—			(42.4		)	564.6
Total	$	14,354.1	$	26.6		$	(664.9	)	$	13,715.8

Changes in the carrying amount of our goodwill during 2019 are set forth below:

	January 1, 2019		Acquisitions and related adjustments		Foreign currency translation adjustments			December 31, 2019
	in millions
U.K./Ireland	$	7,671.0	$	—	$	294.4		$	7,965.4
Belgium	2,576.3		48.7		(48.9		)	2,576.1
Switzerland	2,903.9		—		49.3			2,953.2
Central and Eastern Europe	564.6		—		(7.2		)	557.4
Total	$	13,715.8	$	48.7	$	287.6		$	14,052.1

Schedule of Intangible Assets Subject to Amortization, Net

The details of our intangible assets subject to amortization, which are included in other assets, net, on our consolidated balance sheets, are set forth below: 

	Estimated useful life at December 31, 2019	December 31, 2019							December 31, 2018
		Gross carrying amount		Accumulated amortization			Net carrying amount		Gross carrying amount		Accumulated amortization			Net carrying amount
		in millions
Customer relationships	5 to 10 years	$	3,653.9	$	(3,363.6	)	$	290.3	$	3,673.1	$	(2,914.2	)	$	758.9
Other	2 to 15 years	563.7		(281.9		)	281.8		521.3		(249.0		)	272.3
Total		$	4,217.6	$	(3,645.5	)	$	572.1	$	4,194.4	$	(3,163.2	)	$	1,031.2

Schedule of Amortization Expense Related to Intangible Assets with Finite Lives

The U.S. dollar equivalents of such amortization expense amounts as of December 31, 2019 are presented below (in millions): 

2020	$	178.5
2021	88.9
2022	38.3
2023	32.6
2024	32.4
Thereafter	201.4
Total	$	572.1