Earnings Per Share (Tables)
9 Months Ended
Apr. 03, 2015
Earnings Per Share [Abstract]  
Schedule of computation of basic and diluted net income (loss) per share
 
 
For the Three Months Ended
 
For the Nine Months Ended
(In millions, except per share data)
 
April 3,
2015
 
March 28,
2014
 
April 3,
2015
 
March 28,
2014
Numerator:
 
 

 
 

 
 
 
 
Net income attributable to Seagate Technology plc
 
$
291

 
$
395

 
$
1,605

 
$
1,250

Number of shares used in per share calculations:
 
 

 
 

 
 

 
 

Total shares for purposes of calculating basic net income per share attributable to Seagate Technology plc
 
323

 
327

 
326

 
340

Weighted-average effect of dilutive securities:
 
 

 
 

 
 

 
 

Employee equity award plans
 
7

 
11

 
8

 
11

Total shares for purpose of calculating diluted net income per share attributable to Seagate Technology plc
 
330

 
338

 
334

 
351

Net income per share attributable to Seagate Technology plc shareholders:
 
 

 
 

 
 

 
 

Basic
 
$
0.90

 
$
1.21

 
$
4.92

 
$
3.68

Diluted
 
$
0.88

 
$
1.17

 
$
4.81

 
$
3.56