XML 54 R83.htm IDEA: XBRL DOCUMENT

Fair Value Measurements - Carrying Values and Estimated Fair Values of our Financial Instruments (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Liabilities
Debt, excluding capital lease obligations	$ (2,442)
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Assets
Notes and other	752	594
Liabilities
Debt, excluding capital lease obligations	(2,478)	(3,357)
Estimate of Fair Value, Fair Value Disclosure [Member]
Assets
Notes and other	809	639
Liabilities
Debt, excluding capital lease obligations	$ (2,638)	$ (3,497)

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References+ Details