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WESTERN DIGITAL CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (Continued)
Intangible assets as of June 29, 2012 were as follows:
Weighted Average
Amortization Period
Gross Carrying
Amount
Accumulated
Amortization
Net Carrying
Amount
(in years)
(in millions)
(in millions)
(in millions)
Existing technology . . . . . . . . . . . . . . .
5
$543
$108
$435
Customer relationships . . . . . . . . . . . . .
4
139
14
125
Other . . . . . . . . . . . . . . . . . . . . . . . . . .
3
65
10
55
Leasehold interests . . . . . . . . . . . . . . . .
28
43
2
41
In-process research and development . .
--
143
--
143
Total . . . . . . . . . . . . . . . . . . . . . . . . . .
$933
$134
$799
Other intangible assets in the table above include a joint development agreement, trade names and a non-
compete agreement. Amortization expense for intangible assets was $209 million, $79 million and $17 million for
2013, 2012 and 2011, respectively. As of June 28, 2013, estimated future amortization expense for intangible assets is
$197 million for 2014, $140 million for 2015, $62 million for 2016, $34 million for 2017 and $3 million for 2018.
Note 13.
Pensions and Other Post-retirement Benefit Plans
The Company has pension and other post-retirement benefit plans in various countries. The Company's principal
plans are in Japan. All pension and other post-retirement benefit plans outside of the Company's Japanese plans were
immaterial to the Company's consolidated financial statements.
Obligations and Funded Status
The changes in the benefit obligations and plan assets for the Japanese defined benefit pension plans were as fol-
lows for 2013 and 2012 (in millions):
2013
2012
Change in benefit obligation: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benefit obligation at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
$286
$279
Service cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
4
Interest cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
2
Actuarial gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(4)
--
Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(6)
(2)
Non-U.S. currency movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(58)
3
Benefit obligation at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
234
286
Change in plan assets:
Fair value of plan assets at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
167
162
Actual return on plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29
(1)
Employer contributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
6
Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(6)
(2)
Non-U.S. currency movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(38)
2
Fair value of plan assets at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
167
167
Unfunded status at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
$ 67
$119
85