Other Financial Information (Tables)

12 Months Ended

Dec. 31, 2020

Other Financial Information [Abstract]

Inventories

Total inventory consisted of the following (in millions):

	As of December 31,
	2020		2019
Production and service materials	$	158.1	$	69.0
Finished goods	63.8		25.2
Inventory	$	221.9	$	94.2
Reported as:
Prepaid expenses and other current assets	$	210.2	$	90.6
Other long-term assets	11.7		3.6
Total	$	221.9	$	94.2

Property and equipment

Property and equipment, net, consisted of the following (in millions):

	As of December 31,
	2020		2019
Computers and equipment	$	1,057.5	$	1,041.4
Software	231.1		228.6
Leasehold improvements	223.8		216.9
Furniture and fixtures	49.6		48.3
Building and building improvements	256.0		255.0
Land and land improvements	243.5		243.5
Construction-in-process	17.7		12.9
Property and equipment, gross	2,079.2		2,046.6
Accumulated depreciation	(1,316.9)		(1,215.7)
Property and equipment, net	$	762.3	$	830.9

Outstanding notes receivable and deposit

Total outstanding notes receivable and deposit, net of issuance costs, reported within other long-term assets in the Consolidated Balance Sheets were as follows (in millions):

	As of December 31,
	2020		2019
Pulse Note (including accumulated interest paid in kind)	$	—	$	78.9
Contract manufacturer deposit (non-interest bearing)	43.6		46.0
Total	$	43.6	$	124.9

Warranties

Changes in the Company’s warranty reserve were as follows (in millions):

	As of December 31,
	2020		2019
Beginning balance	$	31.4	$	28.0
Provisions made during the period, net	37.1		39.0
Actual costs incurred during the period	(38.3)		(35.6)
Ending balance	$	30.2	$	31.4

Deferred revenue

Details of the Company's deferred revenue, as reported in the Consolidated Balance Sheets, were as follows (in millions):

	As of December 31,
	2020		2019
Deferred product revenue	$	104.7	$	132.6
Deferred service revenue	1,181.1		1,090.8
Total	$	1,285.8	$	1,223.4
Reported as:
Current	$	867.3	$	812.9
Long-term	418.5		410.5
Total	$	1,285.8	$	1,223.4

The following table summarizes the transaction price for contracts that have not yet been recognized as revenue as of December 31, 2020 and when the Company expects to recognize the amounts as revenue (in millions):

	Revenue Recognition Expected by Period
	Total		Less than 1 year		1-3 years		More than 3 years
Product	$	105.5	$	85.4	$	17.0	$	3.1
Service(*)	1,194.4		789.6		332.0		72.8
Total	$	1,299.9	$	875.0	$	349.0	$	75.9

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(*)     Represents unearned service revenue allocated to the performance obligations not delivered or partially delivered as of December 31, 2020. The unearned service revenue is comprised of deferred revenue and non-cancellable contract revenue which has not been invoiced yet.

Other (expense) income, net

Other expense, net consisted of the following (in millions):

	Years Ended December 31,
	2020		2019		2018
Interest income	$	36.3	$	79.1	$	72.7
Interest expense	(77.0)		(88.7)		(103.2)
Gain (loss) on investments, net	13.3		(3.8)		(7.4)
Other	(5.5)		0.9		(1.6)
Other expense, net	$	(32.9)	$	(12.5)	$	(39.5)