Impacts of Adoption of New Standard on Company's Balance Sheet and Statement of Operations (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017	Dec. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Sales	$ 2,628	$ 2,363	$ 5,458	$ 5,039
Total Cost of goods sold and occupancy costs	2,032	1,818	4,195	3,819
Gross profit	596	545	1,263	1,220
Net income	$ 16	$ 24	$ 57	$ 140
Diluted earnings per share	$ 0.03	$ 0.05	$ 0.10	$ 0.26
Receivables, net	$ 905		$ 905		$ 931
Prepaid expenses and other current assets	142		142		86
Deferred income taxes	290		290		305
Accrued expenses and other current liabilities	953		953		986
Stockholders’ equity	2,156		2,156		$ 2,120
As if the Previous Accounting Guidance was in Effect | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Sales	2,629		5,490
Total Cost of goods sold and occupancy costs	2,036		4,230
Gross profit	593		1,260
Net income	$ 14		$ 55
Diluted earnings per share	$ 0.02		$ 0.10
Receivables, net	$ 910		$ 910
Prepaid expenses and other current assets	132		132
Deferred income taxes	288		288
Accrued expenses and other current liabilities	948		948
Stockholders’ equity	2,156		2,156
Sales - Products
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Sales	2,196	$ 2,167	4,619	$ 4,627
Total Cost of goods sold and occupancy costs	1,737	1,707	3,628	3,585
Sales - Products | As if the Previous Accounting Guidance was in Effect | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Sales	2,186		4,613
Total Cost of goods sold and occupancy costs	1,730		3,625
Sales - Services
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Sales	432	196	839	412
Total Cost of goods sold and occupancy costs	295	$ 111	567	$ 234
Sales - Services | As if the Previous Accounting Guidance was in Effect | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total Sales	443		877
Total Cost of goods sold and occupancy costs	$ 306		$ 605