BUSINESS SEGMENT AND FOREIGN INFORMATION - Yen/Dollar Exchange Rates Used (Detail) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2014 JPY (¥)	Dec. 31, 2013 USD ($)	Dec. 31, 2013 JPY (¥)	Dec. 31, 2012 USD ($)	Dec. 31, 2012 JPY (¥)	Dec. 31, 2014 Exchange effect on total assets USD ($)	Dec. 31, 2013 Exchange effect on total assets USD ($)	Dec. 31, 2014 Exchange effect on total liabilities USD ($)	Dec. 31, 2013 Exchange effect on total liabilities USD ($)
Segment Reporting, Other Significant Reconciling Item [Line Items]
Weighted-average yen/dollar exchange rate		105.46		97.54		79.81
Yen percent strengthening (weakening)	(7.50%)	(7.50%)	(18.20%)	(18.20%)	(0.10%)	(0.10%)
Exchange effect on pretax operating earnings (in millions)	$ (180)		$ (534)		$ 11
Yen/dollar exchange rate at December 31		120.55		105.39
Yen percent strengthening (weakening)	(12.60%)	(12.60%)	(17.80%)	(17.80%)
Exchange effect							$ (10,706)	$ (17,836)	$ (12,025)	$ (19,806)