SUMMARIZED FINANCIAL INFORMATION OF ANIXTER INC - CONDENSED CONSOLIDATED BALANCE SHEETS (Detail) - USD ($) $ in Millions	Jan. 03, 2020	Dec. 29, 2018	Dec. 28, 2018	Dec. 29, 2017	Dec. 30, 2016
Assets:
Current assets	$ 3,037.9		$ 3,172.0
Property and equipment	174.9		163.3
Operating leases	273.3	$ 244.1	0.0
Goodwill	828.7		832.0	$ 778.1
Intangible assets, net	361.2		392.9
Other assets	132.9		92.9
Total assets	4,808.9		4,653.1
Liabilities and Stockholders' Equity:
Current liabilities	1,493.5		1,629.0
Operating lease obligations	219.1		0.0
Other liabilities	175.7		201.0
Stockholders' equity	1,860.9		1,570.4	$ 1,459.0	$ 1,292.2
Total liabilities and stockholders’ equity	4,808.9		4,653.1
Anixter Inc. [Member]
Assets:
Current assets	3,035.3		3,171.6
Property and equipment	179.5		169.1
Operating leases	265.1		0.0
Goodwill	828.7		832.0
Intangible assets, net	361.2		392.9
Other assets	132.9		92.9
Total assets	4,802.7		4,658.5
Liabilities and Stockholders' Equity:
Current liabilities	1,492.8		1,630.3
Long-term debt	1,065.9		1,260.7
Operating lease obligations	213.0		0.0
Other liabilities	172.6		199.6
Stockholders' equity	1,858.4		1,567.9
Total liabilities and stockholders’ equity	$ 4,802.7		$ 4,658.5