XML 24 R52.htm IDEA: XBRL DOCUMENT

Long-Term Debt (Details) (USD $) In Billions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Carrying Amount of Long-term Debt [Member]
Debt Instrument [Line Items]
Carrying amount of long-term debt	$ 4.1	$ 4.1
Fair Value of Long-term Debt [Member]
Debt Instrument [Line Items]
Carrying amount of long-term debt	4.9	4.9
Level 1 [Member] \| Corporate Bonds [Member]
Debt Instrument [Line Items]
Fair value o fcorporate bonds and certain other bonds	4.0
Level 2 [Member] \| Other Bonds [Member]
Debt Instrument [Line Items]
Fair value o fcorporate bonds and certain other bonds	$ 0.9

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

+ References+ Details