Property and Equipment
 12 Months Ended
Dec. 28, 2019
Property, Plant and Equipment [Abstract]  
Property and Equipment
PROPERTY AND EQUIPMENT
Property and equipment as of December 28, 2019 and December 29, 2018 consisted of the following:
 
December 28, 2019
 
December 29, 2018
 
Range of
Useful Lives
Land
$
378

 
$
323

 
 
Buildings and building improvements
1,411

 
1,252

 
10–40 years
Transportation equipment
1,137

 
1,031

 
5–10 years
Warehouse equipment
481

 
418

 
5–12 years
Office equipment, furniture and software
867

 
858

 
3–7 years
Construction in process
99

 
77

 
 
 
4,373

 
3,959

 
 
Less accumulated depreciation and amortization
(2,298
)
 
(2,117
)
 
 
Property and equipment—net
$
2,075

 
$
1,842

 
 


Transportation equipment included $572 million and $544 million of financing lease assets as of December 28, 2019 and December 29, 2018, respectively. Buildings and building improvements included $30 million and $36 million of financing lease assets as of December 28, 2019 and December 29, 2018, respectively. Accumulated amortization of financing lease assets was $269 million and $247 million as of December 28, 2019 and December 29, 2018, respectively. Interest capitalized was $2 million for fiscal years 2019 and 2018.
Depreciation and amortization expense of property and equipment, including amortization of financing lease assets, was $311 million, $300 million and $283 million for fiscal years 2019, 2018 and 2017, respectively.