CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended																12 Months Ended
	Dec. 29, 2018		Sep. 29, 2018		Jun. 30, 2018		Mar. 31, 2018		Dec. 30, 2017		Sep. 30, 2017		Jul. 01, 2017		Apr. 01, 2017		Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Sales:
Total sales	$ 2,670	[1],[2]	$ 2,887	[1]	$ 2,628	[1]	$ 2,830	[1]	$ 2,581	[1],[3]	$ 2,620	[1]	$ 2,363	[1]	$ 2,676	[1]	$ 11,015	$ 10,240	$ 11,021
Cost of goods sold and occupancy costs:
Total cost of goods sold and occupancy costs																	8,464	7,779	8,313
Gross profit	602	[1],[2]	686	[1]	596	[1]	667	[1]	607	[1],[3]	633	[1]	545	[1]	675	[1]	2,551	2,461	2,708
Selling, general and administrative expenses																	2,193	2,036	2,255
Asset impairments	7								3				1				7	4	15
Merger and restructuring expenses (income), net	27		14		14		17		32		22		20		20		72	94	(80)
Legal expense accrual	25																25
Operating income	24	[1],[2],[4]	105	[1],[4]	48	[1],[4]	77	[1],[4]	56	[1],[3],[5],[6]	105	[1],[5],[6]	41	[1],[5],[6]	124	[1],[5],[6]	254	327	518
Other income (expense):
Interest income																	25	22	22
Interest expense																	(121)	(62)	(80)
Loss on extinguishment and modification of debt	(15)																(15)		(15)
Other income, net																	15	12	14
Income from continuing operations before income taxes																	158	299	459
Income tax expense (benefit)																	59	153	(220)
Net income from continuing operations	(14)	[1],[2],[7]	60	[1],[7]	19	[1],[7]	33	[1],[7]	(48)	[1],[3],[8]	98	[1],[8]	21	[1],[8]	74	[1],[8]	99	146	679
Discontinued operations, net of tax					(3)	[1]	8	[1]	(4)	[1],[3]	(6)	[1]	3	[1]	42	[1]	5	35	(150)
Net income	$ (14)	[1],[2]	$ 60	[1]	$ 16	[1]	$ 41	[1]	$ (52)	[1],[3]	$ 92	[1]	$ 24	[1]	$ 116	[1]	$ 104	$ 181	$ 529
Basic earnings (loss) per common share
Continuing operations	$ (0.02)	[1],[2]	$ 0.11	[1]	$ 0.03	[1]	$ 0.06	[1]	$ (0.09)	[1],[3]	$ 0.19	[1]	$ 0.04	[1]	$ 0.14	[1]	$ 0.18	$ 0.28	$ 1.26
Discontinued operations							0.01	[1]	(0.01)	[1],[3]	(0.01)	[1]	0.01	[1]	0.08	[1]	0.01	0.07	(0.28)
Net basic earnings per common share	(0.02)	[1],[2]	0.11	[1]	0.03	[1]	0.07	[1]	(0.10)	[1],[3]	0.18	[1]	0.05	[1]	0.22	[1]	0.19	0.35	0.98
Diluted earnings (loss) per common share
Continuing operations	(0.02)	[1],[2]	0.11	[1]	0.03	[1]	0.06	[1]	(0.09)	[1],[3]	0.19	[1]	0.04	[1]	0.14	[1]	0.18	0.27	1.24
Discontinued operations							0.01	[1]	(0.01)	[1],[3]	(0.01)	[1]	0.01	[1]	0.08	[1]	0.01	0.06	(0.27)
Net diluted earnings per common share	$ (0.02)	[1],[2]	$ 0.11	[1]	$ 0.03	[1]	$ 0.07	[1]	$ (0.10)	[1],[3]	$ 0.17	[1]	$ 0.05	[1]	$ 0.22	[1]	$ 0.19	$ 0.34	$ 0.96
Product
Sales:
Total sales																	$ 9,322	$ 9,320	$ 10,136
Cost of goods sold and occupancy costs:
Total cost of goods sold and occupancy costs																	7,313	7,236	7,810
Service
Sales:
Total sales																	1,693	920	885
Cost of goods sold and occupancy costs:
Total cost of goods sold and occupancy costs																	$ 1,151	$ 543	$ 503

[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.

[4] Includes Merger and restructuring expenses, net totaling $17 million, $14 million, $14 million and $27 million in the first, second, third and fourth quarters of 2018, respectively. The fourth quarter of 2018 also includes asset impairments of $7 million and a legal expense of $25 million. Refer to Note 17 for additional information on the legal expense.

[5] Includes Merger and restructuring expenses, net totaling $20 million, $20 million, $22 million and $32 million in the first, second, third and fourth quarters of 2017, respectively. The second and fourth quarters of 2017 also include asset impairments of $1 million and $3 million, respectively.

[6] Reflects the reclassification of $3 million, $5 million, $3 million and $3 million in the first, second, third and fourth quarters of 2017, respectively, from Selling, general and administrative expenses to Other income, net associated with the retrospective adoption of a 2018 accounting standard affecting the presentation of defined benefit plan expenses. Refer to Note 1 for additional information.

[7] Includes a loss on debt modification of $15 million and a tax benefit of $4 million due to a book-to-tax basis difference related to the sale of Clearpath Holdings, LLC in the fourth quarter of 2018.

[8] The third quarter of 2017 includes a non-cash tax benefit of approximately $37 million from the release of valuation allowances on deferred tax assets. The fourth quarter includes $18 million of net loss from businesses acquired in 2017.