Debt and Bank Credit Agreements and Leases (Short-term Debt Outstanding) (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Short-term Debt [Line Items]
Total	$ 30	$ 39
Other Short-Term Borrowings
Short-term Debt [Line Items]
Other Short-term Borrowings	$ 30	$ 39
Various, weighted average 3.55% as of Dec. 31, 2013 and 2.27% as of December 31, 2012	3.55%	2.27%