XML 50 R36.htm IDEA: XBRL DOCUMENT

Short-Term Borrowing (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Commercial paper outstanding	$ 800
Weighted average interest rate	0.40%
Letters of credit outstanding under the Credit Agreement	$ 252

Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term unsecured obligations issued by corporations and other borrowers to investors (with maturities initially due after one year or beyond the operating cycle if longer).

+ References+ Details