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RETIREMENT PLANS
 6 Months Ended
Mar. 30, 2018
Retirement Benefits [Abstract]  
RETIREMENT PLANS
RETIREMENT PLANS
The Company sponsors five defined benefit pension plans for regular full-time employees in Germany, Japan, Switzerland and the United Kingdom. The Company also sponsors a post-retirement benefit plan that provides healthcare benefits to certain eligible retirees in the United States.
The components of net defined benefit costs were as follows:
 
Three Months Ended
 
Six Months Ended
(In millions)
March 30,
2018
 
March 31,
2017
 
March 30,
2018
 
March 31,
2017
Defined Benefit Plans
 
 
 
 
 
 
 
Service cost
$
1.7

 
$
1.8

 
$
3.3

 
$
3.5

Interest cost
0.8

 
0.6

 
1.6

 
1.2

Expected return on plan assets
(2.0
)
 
(1.8
)
 
(4.0
)
 
(3.5
)
Amortization of prior service cost
(0.2
)
 
—

 
(0.3
)
 
(0.1
)
Recognized actuarial loss
0.7

 
1.1

 
1.4

 
2.2

Net periodic benefit cost
$
1.0

 
$
1.7

 
$
2.0

 
$
3.3