Schedule of Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended																12 Months Ended
	Dec. 29, 2018	[1],[2]	Sep. 29, 2018	[1]	Jun. 30, 2018	[1]	Mar. 31, 2018	[1]	Dec. 30, 2017	[1],[3]	Sep. 30, 2017	[1]	Jul. 01, 2017	[1]	Apr. 01, 2017	[1]	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 2,670		$ 2,887		$ 2,628		$ 2,830		$ 2,581		$ 2,620		$ 2,363		$ 2,676		$ 11,015	$ 10,240	$ 11,021
Gross profit	602		686		596		667		607		633		545		675		2,551	2,461	2,708
Operating income	24	[4]	105	[4]	48	[4]	77	[4]	56	[5],[6]	105	[5],[6]	41	[5],[6]	124	[5],[6]	254	327	518
Net income (loss) from continuing operations	(14)	[7]	60	[7]	19	[7]	33	[7]	(48)	[8]	98	[8]	21	[8]	74	[8]	99	146	679
Discontinued operations, net of tax					(3)		8		(4)		(6)		3		42		5	35	(150)
Net income (loss)	$ (14)		$ 60		$ 16		$ 41		$ (52)		$ 92		$ 24		$ 116		$ 104	$ 181	$ 529
Basic earnings (loss) per common share
Continuing operations	$ (0.02)		$ 0.11		$ 0.03		$ 0.06		$ (0.09)		$ 0.19		$ 0.04		$ 0.14		$ 0.18	$ 0.28	$ 1.26
Discontinued operations							0.01		(0.01)		(0.01)		0.01		0.08		0.01	0.07	(0.28)
Net basic earnings per share	(0.02)		0.11		0.03		0.07		(0.10)		0.18		0.05		0.22		0.19	0.35	0.98
Diluted earnings (loss) per common share
Continuing operations	(0.02)		0.11		0.03		0.06		(0.09)		0.19		0.04		0.14		0.18	0.27	1.24
Discontinued operations							0.01		(0.01)		(0.01)		0.01		0.08		0.01	0.06	(0.27)
Net diluted earnings per share	$ (0.02)		$ 0.11		$ 0.03		$ 0.07		$ (0.10)		$ 0.17		$ 0.05		$ 0.22		$ 0.19	$ 0.34	$ 0.96

[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.