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Pension Plans and Postretirement Benefits (Tables)
 3 Months Ended
Mar. 29, 2015
Compensation and Retirement Disclosure [Abstract]  
Defined Benefit Pension Plans and Postretirement Benefit Plans
The following tables set forth the components of net income/expense for Teledyne’s pension plans and postretirement benefit plans for the first quarter of 2015 and 2014 (in millions):
 
First Quarter
Pension Benefits
2015
 
2014
Service cost — benefits earned during the period
$
3.3

 
$
3.1

Interest cost on benefit obligation
9.9

 
10.7

Expected return on plan assets
(19.2
)
 
(19.1
)
Amortization of prior service cost
(1.5
)
 
(1.2
)
Amortization of net actuarial loss
8.5

 
6.2

Pension plan curtailment
(1.2
)
 
—

Net income
$
(0.2
)
 
$
(0.3
)
 
First Quarter
Postretirement Benefits
2015
 
2014
Interest cost on benefit obligation
$
0.1

 
$
0.2

Amortization of prior service cost
—

 
(0.1
)
Amortization of net actuarial gain
—

 
(0.1
)
Net expense
$
0.1

 
$
—