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Expense Example (Lifecycle 2010 Trust, USD $)
12 Months Ended
May 01, 2011
Series I, Lifecycle 2010 Trust
 
Expense Example:  
Year 1 $ 95
Year 3 296
Year 5 515
Year 10 1,143
Series II, Lifecycle 2010 Trust
 
Expense Example:  
Year 1 115
Year 3 359
Year 5 622
Year 10 1,375
Series NAV, Lifecycle 2010 Trust
 
Expense Example:  
Year 1 90
Year 3 281
Year 5 488
Year 10 $ 1,084