BUSINESS SEGMENT AND FOREIGN INFORMATION - Classes of Property and Equipment (Detail) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Property and equipment:
Land	$ 168	$ 166
Buildings	441	421
Equipment	372	355
Total property and equipment	981	942
Less accumulated depreciation	547	509
Net property and equipment	$ 434	$ 433