Fair Value - Estimated Fair Values and Book Values of Long Term Debt and Liabilities Subordinated to Claims of General Creditors (Detail) (USD $) In Millions, unless otherwise specified	Mar. 28, 2014	Dec. 31, 2013
Liabilities Fair Value And Carrying Value Disclosure [Abstract]
Long-term debt, Book Value	$ 4	$ 4
Liabilities subordinated to claims of general creditors, Book Value	50	50
Total, Book Value	54	54
Long-term debt, Fair Value	4	5
Liabilities subordinated to claims of general creditors, Fair Value	50	50
Total, Fair Value	$ 54	$ 55