NOTES PAYABLE - Summary of Notes Payable (Detail) In Millions, unless otherwise specified	Mar. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Mar. 31, 2012 6.45% senior notes due August 2040 USD ($)		Dec. 31, 2011 6.45% senior notes due August 2040 USD ($)		Mar. 31, 2012 8.50% senior notes due May 2019 USD ($)	Dec. 31, 2011 8.50% senior notes due May 2019 USD ($)	Mar. 31, 2012 6.90% senior notes due December 2039 USD ($)		Dec. 31, 2011 6.90% senior notes due December 2039 USD ($)		Mar. 31, 2012 3.45% senior notes due August 2015 USD ($)	Dec. 31, 2011 3.45% senior notes due August 2015 USD ($)	Mar. 31, 2012 2.65% senior notes due February 2017 USD ($)	Dec. 31, 2011 2.65% senior notes due February 2017 USD ($)	Mar. 31, 2012 4.00% senior notes due February 2022 USD ($)		Dec. 31, 2011 4.00% senior notes due February 2022 USD ($)	Mar. 31, 2012 2.26% yen-denominated Uridashi notes due September 2016 USD ($)	Mar. 31, 2012 2.26% yen-denominated Uridashi notes due September 2016 JPY (¥)	Dec. 31, 2011 2.26% yen-denominated Uridashi notes due September 2016 USD ($)	Dec. 31, 2011 2.26% yen-denominated Uridashi notes due September 2016 JPY (¥)	Mar. 31, 2012 1.47% yen-denominated Samurai notes due July 2014 USD ($)	Mar. 31, 2012 1.47% yen-denominated Samurai notes due July 2014 JPY (¥)	Dec. 31, 2011 1.47% yen-denominated Samurai notes due July 2014 USD ($)	Dec. 31, 2011 1.47% yen-denominated Samurai notes due July 2014 JPY (¥)	Mar. 31, 2012 1.87% yen-denominated Samurai notes due June 2012 USD ($)	Mar. 31, 2012 1.87% yen-denominated Samurai notes due June 2012 JPY (¥)	Dec. 31, 2011 1.87% yen-denominated Samurai notes due June 2012 USD ($)	Dec. 31, 2011 1.87% yen-denominated Samurai notes due June 2012 JPY (¥)	Mar. 31, 2012 1.84% yen-denominated Samurai notes due July 2016 USD ($)	Mar. 31, 2012 1.84% yen-denominated Samurai notes due July 2016 JPY (¥)	Dec. 31, 2011 1.84% yen-denominated Samurai notes due July 2016 USD ($)	Dec. 31, 2011 1.84% yen-denominated Samurai notes due July 2016 JPY (¥)	Mar. 31, 2012 Variable interest rate yen-denominated Samurai notes due July 2014 USD ($)	Mar. 31, 2012 Variable interest rate yen-denominated Samurai notes due July 2014 JPY (¥)	Dec. 31, 2011 Variable interest rate yen-denominated Samurai notes due July 2014 USD ($)	Dec. 31, 2011 Variable interest rate yen-denominated Samurai notes due July 2014 JPY (¥)	Jul. 31, 2011 Variable interest rate yen-denominated Samurai notes due July 2014 JPY (¥)	Mar. 31, 2012 3.60% yen-denominated loan due July 2015 USD ($)	Mar. 31, 2012 3.60% yen-denominated loan due July 2015 JPY (¥)	Dec. 31, 2011 3.60% yen-denominated loan due July 2015 USD ($)	Dec. 31, 2011 3.60% yen-denominated loan due July 2015 JPY (¥)	Mar. 31, 2012 3.00% yen-denominated loan due August 2015 USD ($)	Mar. 31, 2012 3.00% yen-denominated loan due August 2015 JPY (¥)	Dec. 31, 2011 3.00% yen-denominated loan due August 2015 USD ($)	Dec. 31, 2011 3.00% yen-denominated loan due August 2015 JPY (¥)	Mar. 31, 2012 Capitalized Lease Obligations USD ($)	Dec. 31, 2011 Capitalized Lease Obligations USD ($)
Debt Instrument [Line Items]
Notes payable	$ 3,964	$ 3,285	$ 448	[1]	$ 448	[1]	$ 850	$ 850	$ 396	[2]	$ 396	[2]	$ 300	$ 300	$ 400	$ 0	$ 349	[3]	$ 0	$ 97		$ 103		$ 349		$ 369		$ 324		$ 342		$ 192		$ 203		$ 67		$ 71			$ 122		$ 129		$ 61		$ 64		$ 9	$ 10
Notes payable, principal amount			450		450				400		400				400		350				8,000		8,000		28,700		28,700		26,600		26,600		15,800		15,800		5,500		5,500	5,500		10,000		10,000		5,000		5,000
Notes payable, underwriting discount			$ 2		$ 2				$ 4		$ 4						$ 1

[1] $450 issuance net of a $2 underwriting discount that is being amortized over the life of the notes

[2] $400 issuance net of a $4 underwriting discount that is being amortized over the life of the notes

[3] $350 issuance net of a $1 underwriting discount that is being amortized over the life of the notes