Intangible Assets and Goodwill (Tables)

9 Months Ended

Sep. 30, 2021

Intangible Assets and Goodwill [Abstract]

Intangible Assets by Segment

The following table summarizes our intangible assets by business segment at the dates indicated:

	September 30, 2021							December 31, 2020
	Gross Value		Accumulated Amortization			Carrying Value		Gross Value		Accumulated Amortization			Carrying Value
NGL Pipelines & Services:
Customer relationship intangibles	$	447.8	$	(231.3	)	$	216.5	$	447.8	$	(221.3	)	$	226.5
Contract-based intangibles		166.0		(59.3	)		106.7		162.6		(55.0	)		107.6
Segment total		613.8		(290.6	)		323.2		610.4		(276.3	)		334.1
Crude Oil Pipelines & Services:
Customer relationship intangibles		2,195.0		(339.2	)		1,855.8		2,195.0		(291.6	)		1,903.4
Contract-based intangibles		283.1		(259.5	)		23.6		283.1		(249.9	)		33.2
Segment total		2,478.1		(598.7	)		1,879.4		2,478.1		(541.5	)		1,936.6
Natural Gas Pipelines & Services:
Customer relationship intangibles		1,350.3		(541.1	)		809.2		1,350.3		(512.2	)		838.1
Contract-based intangibles		231.1		(181.2	)		49.9		470.7		(403.8	)		66.9
Segment total		1,581.4		(722.3	)		859.1		1,821.0		(916.0	)		905.0
Petrochemical & Refined Products Services:
Customer relationship intangibles		181.4		(72.4	)		109.0		181.4		(68.3	)		113.1
Contract-based intangibles		44.9		(25.6	)		19.3		44.9		(24.6	)		20.3
Segment total		226.3		(98.0	)		128.3		226.3		(92.9	)		133.4
Total intangible assets	$	4,899.6	$	(1,709.6	)	$	3,190.0	$	5,135.8	$	(1,826.7	)	$	3,309.1

Amortization Expense of Intangible Assets by Segment

The following table presents the amortization expense of our intangible assets by business segment for the periods indicated:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2021		2020		2021		2020
NGL Pipelines & Services	$	6.2	$	6.2	$	18.3	$	19.0
Crude Oil Pipelines & Services		20.3		16.0		57.2		55.7
Natural Gas Pipelines & Services		11.5		9.0		32.7		28.8
Petrochemical & Refined Products Services		1.7		1.9		5.1		5.8
Total	$	39.7	$	33.1	$	113.3	$	109.3

Forecasted Amortization Expense

The following table presents our forecast of amortization expense associated with existing intangible assets for the periods indicated:

Remainder of 2021		2022		2023		2024		2025
$	37.4	$	169.6	$	173.8	$	177.9	$	174.4