Acquisitions and Divestitures - Purchase Price Allocation (Detail) (RCI Environnement Inc [Member], USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Jul. 05, 2013
Business Acquisition [Line Items]
Accounts and other receivables	$ 32	$ 32
Property and equipment	117	118
Goodwill	191	177
Other intangible assets	169	169
Deferred revenues	(4)	(4)
Landfill and environmental remediation liabilities	(1)	(1)
Deferred income taxes, net	(14)	0
Long-term debt, less current portion	(3)	(4)
Total purchase price	487	487
Adjustments [Member]
Business Acquisition [Line Items]
Accounts and other receivables	0
Property and equipment	(1)
Goodwill	14
Other intangible assets	0
Deferred revenues	0
Landfill and environmental remediation liabilities	0
Deferred income taxes, net	(14)
Long-term debt, less current portion	1
Total purchase price	$ 0