Other Financial Information (Tables)

3 Months Ended

Mar. 31, 2018

Other Financial Information [Abstract]

Total inventory consisted of the following (in millions):



	As of
	March 31, 2018		December 31, 2017
Production and service materials	$	62.9	$	71.2
Finished goods	33.1		26.6
Inventory	$	96.0	$	97.8

Reported as:
Prepaid expenses and other current assets	$	92.6	$	93.8
Other long-term assets	3.4		4.0
Total	$	96.0	$	97.8

Warranties

Changes during the three months ended March 31, 2018 in the Company’s warranty reserve as reported within other accrued liabilities in the Condensed Consolidated Balance Sheets were as follows (in millions):



Balance as of December 31, 2017	$	27.4
Provisions made during the period	8.2
Actual costs incurred during the period	(8.3		)
Balance as of March 31, 2018	$	27.3

Deferred revenue

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



	As of
	March 31, 2018			December 31, 2017
Deferred product revenue:
Undelivered product commitments and other product deferrals	$	166.4		$	312.6
Distributor inventory and other sell-through items	—			68.1
Deferred gross product revenue	166.4			380.7
Deferred cost of product revenue	(7.6		)	(46.5		)
Deferred product revenue, net	158.8			334.2
Deferred service revenue	1,098.1			1,205.1
Total	$	1,256.9		$	1,539.3
Reported as:
Current	$	888.2		$	1,030.3
Long-term	368.7			509.0
Total	$	1,256.9		$	1,539.3

Other expense, net

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



	Three Months Ended March 31,
	2018			2017
Interest income	$	14.9		$	10.4
Interest expense	(26.0		)	(25.3		)
(Loss) gain on investments, net	(0.5		)	1.2
Other	(2.5		)	(2.0		)
Other expense, net	$	(14.1	)	$	(15.7	)