Schedule of Quarterly Financial Data (Parenthetical) (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended																12 Months Ended
	Dec. 29, 2018	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
Quarterly Financial Data [Line Items]
Merger and restructuring expenses (income), net		$ 27		$ 14		$ 14		$ 17		$ 32		$ 22		$ 20		$ 20		$ 72	$ 94	$ (80)
Asset impairments		7								3				1				7	4	15
Legal expense accrual		25																25
Loss on extinguishment and modification of debt		(15)																(15)		(15)
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
Non-cash income tax benefit												37
Net income from continuing operations		(14)	[1],[2],[4]	$ 60	[1],[4]	$ 19	[1],[4]	$ 33	[1],[4]	(48)	[1],[3],[5]	98	[1],[5]	21	[1],[5]	74	[1],[5]	$ 99	$ 146	$ 679
Other Income, Net
Quarterly Financial Data [Line Items]
Reclassification of selling, general and administrative expenses to other income, net										3		$ 3		$ 5		$ 3
Acquisitions
Quarterly Financial Data [Line Items]
Sales										205
Net income from continuing operations										$ (18)
Clearpath Holdings, LLC
Quarterly Financial Data [Line Items]
Tax Benefit	$ 4	$ 4

[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 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.

[5] 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.