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Property, Plant, and Equipment
 12 Months Ended
Sep. 01, 2016
Property, Plant and Equipment [Abstract]  
Property, Plant, and Equipment
Property, Plant, and Equipment

As of
 
2015
 
Additions
 
Retirements and Other
 
2016
Land
 
$
88

 
$
—

 
$
57

 
$
145

Buildings (includes $271 as of 2015 and $347 as of 2016 for capital leases)
 
5,358

 
1,340

 
(45
)
 
6,653

Equipment(1) (includes $1,192 as of 2015 and $1,374 as of 2016 for capital leases)
 
21,020

 
5,541

 
(651
)
 
25,910

Construction in progress(2)
 
436

 
79

 
(40
)
 
475

Software
 
373

 
51

 
(2
)
 
422

 
 
27,275

 
7,011

 
(681
)
 
33,605

Accumulated depreciation (includes $717 as of 2015 and $492 as of 2016 for capital leases)
 
(16,721
)
 
(2,863
)
 
665

 
(18,919
)
 
 
$
10,554

 
$
4,148

 
$
(16
)
 
$
14,686


(1) 
Included costs related to equipment not placed into service of $1.47 billion and $928 million, as of September 1, 2016 and September 3, 2015, respectively.
(2) 
Included building-related construction and tool installation costs on assets not placed into service.

Depreciation expense was $2.86 billion, $2.55 billion, and $1.99 billion for 2016, 2015, and 2014, respectively. Other noncurrent assets included land held for development of $58 million as of September 3, 2015. As of September 1, 2016, production equipment, buildings, and land with an aggregate carrying value of $1.97 billion were pledged as collateral under various notes payable. Interest capitalized as part of the cost of property, plant, and equipment was $43 million, $20 million, and $4 million for 2016, 2015, and 2014, respectively.