Balance Sheet Information (Tables)
 3 Months Ended
Mar. 30, 2018
Balance Sheet Related Disclosures [Abstract]  
Supplemental Balance Sheet Information
Certain significant amounts included in the Company's Consolidated Balance Sheets consist of the following (in millions):
 
As of
 
March 30, 2018
 
December 31, 2017
Receivables, net:
 
 
 
Accounts receivable
$
700.3

 
$
704.2

Less: Allowance for doubtful accounts
(3.4
)
 
(2.7
)
 
$
696.9

 
$
701.5

Inventories:
 
 
 
Raw materials
$
119.9

 
$
117.7

Work in process
711.9

 
660.8

Finished goods
328.2

 
311.0

 
$
1,160.0

 
$
1,089.5

Property, plant and equipment, net:
 
 
 
Land
$
148.5

 
$
148.4

Buildings
751.7

 
744.0

Machinery and equipment
3,582.7

 
3,454.6

Total property, plant and equipment
4,482.9

 
4,347.0

Less: Accumulated depreciation
(2,146.5
)
 
(2,067.9
)
 
$
2,336.4

 
$
2,279.1

Accrued expenses:
 
 
 
Accrued payroll and related benefits
$
174.3

 
$
201.8

Sales related reserves
284.4

 
280.0

Income taxes payable
13.6

 
29.9

Other
113.5

 
101.1

 
$
585.8

 
$
612.8
Schedule of Product Warranty Liability
The activity related to the Company's warranty reserves was as follows (in millions):
 
Quarter Ended
 
March 30, 2018
 
March 31, 2017
Beginning Balance
$
8.0

 
$
8.8

Provision
(0.4
)
 
0.8

Usage
(0.2
)
 
(1.8
)
Ending Balance
$
7.4

 
$
7.8
Schedule of Net Benefit Costs
The components of the Company's net periodic pension expense are as follows (in millions):
 
Quarter Ended
 
March 30, 2018
 
March 31, 2017
Service cost
$
2.5

 
$
2.3

Interest cost
1.2

 
1.0

Expected return on plan assets
(1.6
)
 
(1.3
)
Total net periodic pension cost
$
2.1

 
$
2.0