XML 93 R133.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Net Operating Loss Carryforwards Expire Date (Detail)
In Millions
Mar. 31, 2011
USD ($)
Mar. 31, 2011
JPY (¥)
Operating Loss Carryforwards [Line Items]    
2012 $ 113 ¥ 9,394
2013 160 13,302
2014 72 6,013
2015 263 21,856
2016 273 22,661
Thereafter 784 65,202
Total $ 1,665 ¥ 138,428