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Related party transactions
12 Months Ended
Mar. 31, 2011
Related party transactions [Abstract]  
Related party transactions
 
5.   Related party transactions
 
Sony accounts for its investments in affiliated companies over which Sony has significant influence under the equity method. In addition, investments in general partnerships in which Sony does not have a controlling interest and limited partnerships are also accounted for under the equity method if more than minor influence over the operation of the investee exists (generally through more than 3-5% ownership). Significant investments at March 31, 2011 of this nature include, but are not limited to, Sony’s interest in Sony Ericsson Mobile Communications AB (“Sony Ericsson”) (50%) and S-LCD Corporation (“S-LCD”) (50% minus 1 share).
 
The summarized combined financial information that is based on information provided by the equity investees including information for significant equity affiliates and the reconciliation of such information to the consolidated financial statements is shown below:
 
Balance Sheets
 
                                 
    Yen in millions
    March 31, 2010
    Sony
           
    Ericsson   S-LCD   Others   Total
 
Current assets
    322,537       161,571       133,606       617,714  
Noncurrent assets
    98,375       300,206       127,237       525,818  
                                 
Total assets
    420,912       461,777       260,843       1,143,532  
                                 
Current liabilities
    341,087       102,538       100,829       544,454  
Long-term liabilities and noncontrolling interests
    23,837       22,443       54,306       100,586  
Stockholders’ equity
    55,988       336,796       105,708       498,492  
Percentage of ownership in equity investees
    50 %     50 %     20%-50 %        
Equity investment and undistributed earnings of affiliated companies, before consolidating and reconciling adjustments
    27,994       168,398                  
Consolidation and reconciling adjustments:
                               
Other
    (1,088 )     61                  
                                 
Investment in and advances to equity investees at cost plus equity in undistributed earnings since acquisition
    26,906       168,459       33,686       229,051  
                                 
 
                                 
    Yen in millions
    March 31, 2011
    Sony
           
    Ericsson   S-LCD   Others   Total
 
Current assets
    254,858       188,903       183,597       627,358  
Noncurrent assets
    92,925       233,988       137,720       464,633  
                                 
Total assets
    347,783       422,891       321,317       1,091,991  
                                 
Current liabilities
    282,857       71,572       166,056       520,485  
Long-term liabilities and noncontrolling interests
    8,089       29,696       61,036       98,821  
Stockholders’ equity
    56,837       321,623       94,225       472,685  
Percentage of ownership in equity investees
    50 %     50 %     20%-50 %        
Equity investment and undistributed earnings of affiliated companies, before consolidating and reconciling adjustments
    28,419       160,812                  
Consolidation and reconciling adjustments:
                               
Other
    (79 )                      
                                 
Investment in and advances to equity investees at cost plus equity in undistributed earnings since acquisition
    28,340       160,812       32,841       221,993  
                                 
 
Statements of Income
 
                                 
    Yen in millions
    Fiscal year ended March 31, 2009
    Sony
           
    Ericsson   S-LCD   Others   Total
 
Net revenues
    1,459,259       670,311       550,691       2,680,261  
                                 
Operating income (loss)
    (92,762 )     1,393       15,475       (75,894 )
Other income (expense), net
    12,599       11,191                  
                                 
Income (loss) before income taxes
    (80,163 )     12,584                  
Income tax (expense) benefit
    23,888       (626 )                
Net income (loss) attributable to noncontrolling interests
    (3,434 )                      
                                 
Net income (loss) attributable to controlling interests
    (59,709 )     11,958       4,898       (42,853 )
Percentage of ownership in equity investees
    50 %     50 %     20%-50 %        
Equity in net income (loss) of affiliated companies, before consolidating and reconciling adjustments
    (29,855 )     5,979                  
Consolidation and reconciling adjustments:
                               
Other
    (400 )     916                  
                                 
Equity in net income (loss) of affiliated companies
    (30,255 )     6,895       (1,749 )     (25,109 )
                                 
 
                                 
    Yen in millions
    Fiscal year ended March 31, 2010
    Sony
           
    Ericsson   S-LCD   Others   Total
 
Net revenues
    837,149       796,575       323,576       1,957,300  
                                 
Operating income (loss)
    (81,385 )     3,825       29,686       (47,874 )
Other income (expense), net
    (4,676 )     (4,055 )                
                                 
Income (loss) before income taxes
    (86,061 )     (230 )                
Income tax (expense) benefit
    20,470       53                  
Net income (loss) attributable to noncontrolling interests
    (3,318 )                      
                                 
Net income (loss) attributable to controlling interests
    (68,909 )     (177 )     17,064       (52,022 )
Percentage of ownership in equity investees
    50 %     50 %     20%-50 %        
Equity in net income (loss) of affiliated companies, before consolidating and reconciling adjustments
    (34,455 )     (89 )                
Consolidation and reconciling adjustments:
                               
Other
    (59 )     476                  
                                 
Equity in net income (loss) of affiliated companies
    (34,514 )     387       3,892       (30,235 )
                                 
 
                                 
    Yen in millions
    Fiscal year ended March 31, 2011
    Sony
           
    Ericsson   S-LCD   Others   Total
 
Net revenues
    673,464       807,955       268,604       1,750,023  
                                 
Operating income (loss)
    16,453       12,527       17,630       46,610  
Other income (expense), net
    (1,572 )     (4,119 )                
                                 
Income (loss) before income taxes
    14,881       8,408                  
Income tax (expense) benefit
    (6,065 )     3,094                  
Net income (loss) attributable to noncontrolling interests
    (520 )                      
                                 
Net income (loss) attributable to controlling interests
    8,296       11,502       8,895       28,693  
Percentage of ownership in equity investees
    50 %     50 %     20%-50 %        
Equity in net income (loss) of affiliated companies, before consolidating and reconciling adjustments
    4,148       5,751                  
Consolidation and reconciling adjustments:
                               
Other
    7       1,463                  
                                 
Equity in net income (loss) of affiliated companies
    4,155       7,214       2,693       14,062  
                                 
 
Sony Ericsson, a 50/50 joint venture with Telefonaktiebolaget LM Ericsson focused on mobile phone handsets, was established in October 2001 and is included in affiliated companies accounted for under the equity method. Sony Ericsson purchases several key components such as camera modules, memory, batteries and liquid crystal display (“LCD”) panels from Sony. Sony received dividends of 23,363 million yen in September 2008 from Sony Ericsson.
 
S-LCD, a joint venture with Samsung Electronics Co., Ltd. focused on manufacturing amorphous TFT panels, was established in April 2004 with Sony’s ownership interest of 50% minus 1 share. Sony invested 13,273 million yen in S-LCD during the fiscal year ended March 31, 2009. S-LCD is strategic to Sony’s television business as it provides a source of high quality large screen LCD panels to differentiate Sony’s Bravia LCD televisions.
 
On October 1, 2008, Sony acquired Bertelsmann AG’s 50% equity interest in SONY BMG MUSIC ENTERTAINMENT (“SONY BMG”). As a result of this acquisition, SONY BMG became a wholly owned subsidiary of Sony and its results are consolidated from the acquisition date. The summarized financial information for SONY BMG for the six months ended September 30, 2008 is included in Others in the table above. SONY BMG was established as a 50/50 joint venture on August 1, 2004 when Sony combined its recorded music business, except for the operations of its recorded music business in Japan, with the recorded music business of Bertelsmann AG. As a result, the operations of SONY BMG were accounted for under the equity method from August 1, 2004 until Sony’s acquisition of the remaining 50% equity interest.
 
There was no significant difference between Sony’s proportionate share in the underlying net assets of the investees and the carrying value of investments in affiliated companies at March 31, 2010 and 2011.
 
There were no affiliated companies accounted for under the equity method with a market quotation at March 31, 2010 and 2011.
 
The number of affiliated companies accounted for under the equity method at March 31, 2010 and 2011 were 73 and 82, respectively.
 
Account balances and transactions with affiliated companies accounted for under the equity method are presented below:
 
                 
    Yen in millions
    March 31
    2010   2011
 
Accounts receivable, trade
    21,467       18,631  
                 
Accounts payable, trade
    61,360       45,434  
                 
 
                         
    Yen in millions
    Fiscal year ended March 31
    2009   2010   2011
 
Sales
    204,578       132,937       96,164  
                         
Purchases
    332,286       309,550       383,922  
                         
 
Dividends from affiliated companies accounted for under the equity method for the fiscal years ended March 31, 2009, 2010 and 2011 were 40,361 million yen, 5,948 million yen and 2,583 million yen, respectively.