Business and Geographic Segments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Kronos Worldwide, Inc.
Segment Reporting Information [Line Items]
Direct controlling interest in subsidiary	50.00%
Indirect controlling interest in subsidiary	30.00%
Total controlling interest	80.00%
NL
Segment Reporting Information [Line Items]
Total controlling interest	83.00%
Corporate assets held by subsidiary	10.00%	15.00%
Non-U.S. subsidiaries
Segment Reporting Information [Line Items]
Net assets of non-U.S. subsidiaries	$ 708	$ 775