Impacts of Adoption of New Standard on Company's Statement of Operations and Balance Sheet (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended																12 Months Ended
	Dec. 29, 2018		Sep. 29, 2018	[1]	Jun. 30, 2018	[1]	Mar. 31, 2018	[1]	Dec. 30, 2017		Sep. 30, 2017	[1]	Jul. 01, 2017	[1]	Apr. 01, 2017	[1]	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total sales	$ 2,670	[1],[2]	$ 2,887		$ 2,628		$ 2,830		$ 2,581	[1],[3]	$ 2,620		$ 2,363		$ 2,676		$ 11,015	$ 10,240	$ 11,021
Total cost of goods sold and occupancy costs																	8,464	7,779	8,313
Gross profit	602	[1],[2]	686		596		667		607	[1],[3]	633		545		675		2,551	2,461	2,708
Net income	$ (14)	[1],[2]	$ 60		$ 16		$ 41		$ (52)	[1],[3]	$ 92		$ 24		$ 116		$ 104	$ 181	$ 529
Diluted earnings per share	$ (0.02)	[1],[2]	$ 0.11		$ 0.03		$ 0.07		$ (0.10)	[1],[3]	$ 0.17		$ 0.05		$ 0.22		$ 0.19	$ 0.34	$ 0.96
Receivables, net	$ 885								$ 931								$ 885	$ 931
Prepaid expenses and other current assets	75								86								75	86
Deferred income taxes	284								305								284	305
Accrued expenses and other current liabilities	978								$ 986								978	986
Stockholders’ equity	2,126																2,126
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																	11,068
Total cost of goods sold and occupancy costs																	8,519
Gross profit																	2,549
Net income																	$ 103
Diluted earnings per share																	$ 0.18
Receivables, net	888																$ 888
Prepaid expenses and other current assets	68																68
Deferred income taxes	282																282
Accrued expenses and other current liabilities	973																973
Stockholders’ equity	$ 2,126																2,126
Sales - Products
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total sales																	9,322	9,320	$ 10,136
Total cost of goods sold and occupancy costs																	7,313	7,236	7,810
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																	9,318
Total cost of goods sold and occupancy costs																	7,311
Service
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total sales																	1,693	920	885
Total cost of goods sold and occupancy costs																	1,151	$ 543	$ 503
Service | 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																	1,750
Total cost of goods sold and occupancy costs																	$ 1,208

[1] Due to rounding, the sum of the quarterly amounts may not equal the reported amounts for the year.

[2] The sum of the quarterly earnings per share does not equal the annual earnings per share due to differences in quarterly and annual weighted-average shares outstanding.

[3] Includes $205 million of incremental sales from acquisitions in the fourth quarter of 2017.