NOTES PAYABLE - Summary of Notes Payable (Detail) In Millions, unless otherwise specified	Sep. 30, 2012 USD ($)	Dec. 31, 2011 USD ($)	Sep. 30, 2012 8.50% senior notes due May 2019 USD ($)	Dec. 31, 2011 8.50% senior notes due May 2019 USD ($)	Sep. 30, 2012 6.45% senior notes due August 2040 USD ($)		Dec. 31, 2011 6.45% senior notes due August 2040 USD ($)		Sep. 30, 2012 6.90% senior notes due December 2039 USD ($)		Dec. 31, 2011 6.90% senior notes due December 2039 USD ($)		Sep. 30, 2012 3.45% senior notes due August 2015 USD ($)	Dec. 31, 2011 3.45% senior notes due August 2015 USD ($)	Sep. 30, 2012 2.65% senior notes due February 2017 USD ($)		Jul. 31, 2012 2.65% senior notes due February 2017 USD ($)	Feb. 29, 2012 2.65% senior notes due February 2017 USD ($)	Dec. 31, 2011 2.65% senior notes due February 2017 USD ($)	Sep. 30, 2012 4.00% senior notes due February 2022 USD ($)		Feb. 29, 2012 4.00% senior notes due February 2022 USD ($)	Dec. 31, 2011 4.00% senior notes due February 2022 USD ($)	Sep. 30, 2012 5.50% subordinated notes due September 2052 USD ($)	Dec. 31, 2011 5.50% subordinated notes due September 2052 USD ($)	Sep. 30, 2012 2.26% yen-denominated Uridashi notes due September 2016 USD ($)	Sep. 30, 2012 2.26% yen-denominated Uridashi notes due September 2016 JPY (¥)	Dec. 31, 2011 2.26% yen-denominated Uridashi notes due September 2016 USD ($)	Dec. 31, 2011 2.26% yen-denominated Uridashi notes due September 2016 JPY (¥)	Sep. 30, 2012 1.47% yen-denominated Samurai notes due July 2014 USD ($)	Sep. 30, 2012 1.47% yen-denominated Samurai notes due July 2014 JPY (¥)	Dec. 31, 2011 1.47% yen-denominated Samurai notes due July 2014 USD ($)	Dec. 31, 2011 1.47% yen-denominated Samurai notes due July 2014 JPY (¥)	Sep. 30, 2012 1.87% yen-denominated Samurai notes paid June 2012 USD ($)	Dec. 31, 2011 1.87% yen-denominated Samurai notes paid June 2012 USD ($)	Dec. 31, 2011 1.87% yen-denominated Samurai notes paid June 2012 JPY (¥)	Sep. 30, 2012 1.84% yen-denominated Samurai notes due July 2016 USD ($)	Sep. 30, 2012 1.84% yen-denominated Samurai notes due July 2016 JPY (¥)	Dec. 31, 2011 1.84% yen-denominated Samurai notes due July 2016 USD ($)	Dec. 31, 2011 1.84% yen-denominated Samurai notes due July 2016 JPY (¥)	Sep. 30, 2012 Variable interest rate yen-denominated Samurai notes due July 2014 USD ($)	Sep. 30, 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 ($)	Dec. 31, 2011 Variable interest rate yen-denominated Samurai notes due July 2014 JPY (¥)	Sep. 30, 2012 3.60% yen-denominated loan due July 2015 USD ($)	Sep. 30, 2012 3.60% yen-denominated loan due July 2015 JPY (¥)	Dec. 31, 2011 3.60% yen-denominated loan due July 2015 USD ($)	Dec. 31, 2011 3.60% yen-denominated loan due July 2015 JPY (¥)	Sep. 30, 2012 3.00% yen-denominated loan due August 2015 USD ($)	Sep. 30, 2012 3.00% yen-denominated loan due August 2015 JPY (¥)	Dec. 31, 2011 3.00% yen-denominated loan due August 2015 USD ($)	Dec. 31, 2011 3.00% yen-denominated loan due August 2015 JPY (¥)	Sep. 30, 2012 Capitalized Lease Obligations USD ($)	Dec. 31, 2011 Capitalized Lease Obligations USD ($)
Debt Instrument [Line Items]
Notes payable	$ 4,401	$ 3,285	$ 850	$ 850	$ 448	[1]	$ 448	[1]	$ 396	[2]	$ 396	[2]	$ 300	$ 300	$ 657	[3]			$ 0	$ 349	[4]		$ 0	$ 450	$ 0	$ 103		$ 103		$ 370		$ 369		$ 0	$ 342		$ 204		$ 203		$ 71		$ 71		$ 129		$ 129		$ 64		$ 64		$ 10	$ 10
Notes payable, principal amount					450		450		400		400				650		250	400		350		350		450			8,000		8,000		28,700		28,700			26,600		15,800		15,800		5,500		5,500		10,000		10,000		5,000		5,000
Notes payable, issuance premium															7
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] $650 issuance plus $7 of an issuance premium that is being amortized over the life of the notes

[4] $350 issuance net of a $1 underwriting discount that is being amortized over the life of the notes