v3.26.1
Shareholder Report, Line Graph (Details) - USD ($)
 12 Months Ended 24 Months Ended 36 Months Ended 48 Months Ended 60 Months Ended 72 Months Ended 84 Months Ended 96 Months Ended 108 Months Ended 120 Months Ended
May 31, 2016
May 31, 2026
May 31, 2017
May 31, 2018
May 31, 2019
May 31, 2020
May 31, 2021
May 31, 2022
May 31, 2023
May 31, 2024
May 31, 2025
May 31, 2026
C000037625 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class R Shares                    
Accumulated Value $ 10,000   $ 12,630.48 $ 15,552.32 $ 17,782.74 $ 21,120.05 $ 29,227.42 $ 21,872.48 $ 21,728.16 $ 25,841.27 $ 28,254.62 $ 31,076.22
C000166016 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class K Shares                    
Accumulated Value 10,000   12,721.78 15,764.51 18,125.89 21,651.61 30,138.21 22,686.8 22,679.91 27,133.3 29,838.37 33,012.45
C000004040 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor C Shares (with sales charge)                    
Accumulated Value 10,000   12,579.26 15,415.33 17,543.48 20,729.46 28,550.29 21,260.3 21,016.51 24,876.46 27,266.7 30,071.73
C000004038 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares (with sales charge)                    
Accumulated Value 9,475   12,005.14 14,811.87 16,979.23 20,218.87 28,050.58 21,040.91 20,958.13 24,984.2 27,384.79 30,201.97
C000004037 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Service Shares                    
Accumulated Value 10,000.01   12,691.3 15,673.44 17,967.16 21,394 29,687.14 22,263.49 22,180.02 26,444.53 28,978.95 31,958.96
C000004036 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 10,000   12,703.68 15,730.95 18,075.56 21,578.27 30,010.86 22,566.42 22,538.93 26,938.11 29,598.24 32,715.42
C000004057 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 10,000.01   11,728.59 12,476.51 12,517.39 12,107.46 17,060.05 18,100.84 17,269.86 20,456.4 21,279.47 25,853.63
C000004059 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares (with sales charge)                    
Accumulated Value 9,474.99   11,079.04 11,752.21 11,761.77 11,353.68 15,951.44 16,886.79 16,061.53 18,975.23 19,698.51 23,872.77
C000004061 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor C Shares (with sales charge)                    
Accumulated Value 10,000.01   11,601.37 12,220.25 12,133.54 11,630.75 16,214.45 17,042.53 16,093.61 18,876.91 19,596.48 23,749.14
C000219259 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class K Shares                    
Accumulated Value 10,000.01   11,728.59 12,476.51 12,517.39 12,107.91 17,070.02 18,121.12 17,284.45 20,485.31 21,319.32 25,917
C000037630 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class R Shares                    
Accumulated Value 9,999.99   13,843.11 18,754.38 20,101.64 28,368.96 43,925.84 32,703.23 34,339.58 46,892.82 54,176.78 89,368
C000216612 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class K Shares                    
Accumulated Value 10,000   13,917.54 18,949.45 20,419.09 28,964.35 45,113.66 33,786.1 35,673.05 48,986.11 56,923 94,424
C000004066 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor C Shares (with sales charge)                    
Accumulated Value 10,000   13,771.53 18,565.93 19,813.58 27,811.7 42,850.24 31,750.45 33,170.1 45,074.13 52,210.23 86,332.57
C000004064 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares (with sales charge)                    
Accumulated Value 9,475   13,149.19 17,862.69 19,200.71 27,155.73 42,153.22 31,466.09 33,123.4 45,335.61 52,513.11 86,833.41
C000004063 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Service Shares                    
Accumulated Value 9,999.99   13,883.88 18,871.2 20,281.85 28,684.02 44,531.43 33,241.85 34,989.35 47,898.81 55,477.4 91,732.96
C000004062 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 10,000   13,917.54 18,949.45 20,419.09 28,957.71 45,066.64 33,725.52 35,589.22 48,836.39 56,694.1 93,958.9
C000004873 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 10,000   10,115.54 12,374.36 10,050.56 7,133.37 9,534.15 15,729.29 14,063.13 17,810.77 16,445.6 23,226.4
C000004875 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares (with sales charge)                    
Accumulated Value 9,475   9,541.5 11,630.35 9,399.06 6,644.74 8,848.32 14,538.83 12,944.56 16,317.38 15,011.76 21,116.91
C000004877 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor C Shares (with sales charge)                    
Accumulated Value 10,000   10,000.04 12,093.71 9,707.07 6,819.49 9,005.42 14,693.56 12,994.11 16,268.04 14,966.37 21,053.03
C000037656 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class R Shares                    
Accumulated Value 10,000   12,038.48 14,528.99 15,013.33 18,307.59 25,068.39 22,994.12 24,150.4 32,147.88 37,706.75 51,515.92
C000198239 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class K Shares                    
Accumulated Value 10,000   12,090.93 14,634.67 15,206.44 18,656.67 25,671.68 23,678.69 25,012.33 33,468.13 39,477.29 54,239.4
C000004887 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor C Shares (with sales charge)                    
Accumulated Value 10,000   11,987.83 14,393.32 14,796.38 17,958.97 24,469.2 22,330.91 23,334.55 30,909.08 36,344.34 49,780.94
C000004885 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares (with sales charge)                    
Accumulated Value 9,475   11,456.16 13,853.78 14,354.79 17,548.24 24,089.35 22,149.5 23,319.54 31,119.9 36,592.21 50,120.43
C000004883 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 10,000   12,131.25 14,714.87 15,272.05 18,727.5 25,757.46 23,748.76 25,082.53 33,546.64 39,536.15 54,300.61
C000004912 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 9,999.98   11,144.09 12,716.37 13,619.39 17,449.21 20,806.48 20,074.74 20,534.02 23,320.1 21,971.97 25,732.83
C000004913 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Service Shares                    
Accumulated Value 10,000   11,113.6 12,645.31 13,501.57 17,246.43 20,503.15 19,722.48 20,113.08 22,776.69 21,390.02 24,975.5
C000004914 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares (with sales charge)                    
Accumulated Value 9,475.01   10,529.75 11,981.96 12,795.02 16,351.75 19,447.11 18,715.97 19,095.8 21,633.03 20,329.6 23,754.4
C000004916 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor C Shares (with sales charge)                    
Accumulated Value 10,000   11,031.33 12,462.3 13,214.64 16,764.58 19,789.83 18,905.6 19,142.44 21,519.34 20,222.74 23,629.56
C000172900 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class K Shares                    
Accumulated Value 10,000.02   11,156.28 12,743.4 13,659.91 17,521.27 20,912.94 20,199.34 20,679.2 23,507.24 22,166.2 25,989.99
C000037661 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class R Shares                    
Accumulated Value 9,999.99   11,075.98 12,563 13,376.35 17,036.96 20,190.15 19,362.31 19,683.84 22,218.59 20,804.79 24,222.43
C000037670 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class R Shares                    
Accumulated Value 9,999.99   11,674.26 12,640.68 11,678.22 11,166.65 15,551.3 13,896.2 14,527.62 17,404.91 20,172.06 24,781.97
C000198216 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class K Shares                    
Accumulated Value 10,000   11,752.12 12,793.31 11,879.61 11,425.31 16,002.09 14,375.83 15,116.93 18,208.49 21,228.12 26,214.13
C000023032 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor C Shares (with sales charge)                    
Accumulated Value 9,999.99   11,627.9 12,532.98 11,521.34 10,962.77 15,190.98 13,511.05 14,056.59 16,757.14 19,462.36 23,970.9
C000023030 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares (with sales charge)                    
Accumulated Value 9,475   11,106.23 12,059.31 11,164.91 10,705.17 14,948.48 13,393.41 14,038.63 16,862.22 19,584.39 24,121.19
C000023028 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 10,000   11,752.12 12,793.31 11,874 11,414.55 15,979.55 14,348.97 15,080.96 18,156.99 21,149.72 26,098.87
C000103252 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 10,000   10,471.98 11,848.29 10,366.4 9,670.82 14,193.39 17,946.87 14,993.15 16,837.27 17,746.26 24,959.54
C000103250 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares (with sales charge)                    
Accumulated Value 9,475   9,893.11 11,185.5 9,751.04 9,076.96 13,285.61 16,766.69 13,956.98 15,648.75 16,440.87 23,090.95
C000103251 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor C Shares (with sales charge)                    
Accumulated Value 10,000   10,361.45 11,611.45 10,048.3 9,288.84 13,497.77 16,899.43 13,969.05 15,546.59 16,333.53 22,940.17
C000198241 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class K Shares                    
Accumulated Value 10,000   10,471.98 11,862.95 10,371.59 9,695.75 14,213.82 17,995.08 15,028.79 16,905.75 17,826.72 25,096.82
C000166014 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Class K Shares                    
Accumulated Value 10,000   12,073.72 14,481.38 13,478.35 13,577.43 22,080.39 18,361.22 17,314.84 21,608.97 21,663.21 31,384.62
C000124021 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor C Shares (with sales charge)                    
Accumulated Value 10,000   11,947.39 14,175.88 13,066.53 13,013.1 20,954.68 17,237.5 16,082.4 19,869.19 19,856.45 28,673.85
C000124020 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Investor A Shares (with sales charge)                    
Accumulated Value 9,475   11,417.99 13,645.25 12,668.63 12,725.34 20,621.74 17,099.55 16,077.76 20,003.69 19,990.86 28,867.97
C000124019 [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Institutional Shares                    
Accumulated Value 10,000   12,083.62 14,479 13,481.49 13,564.07 22,056.79 18,331.69 17,277.32 21,541.95 21,585.86 31,256.7
Russell 1000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 1000 Index                    
Accumulated Value 10,000   11,748 13,462 13,929 15,675 22,363 21,757 22,290 28,533 32,451 41,812
MSCI All Country World Index Net [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI All Country World Index (Net)                    
Accumulated Value 10,000   11,753 13,144 12,974 13,679 19,402 18,086 18,240 22,537 25,614 33,367
Russell 3000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 3000 Index                    
Accumulated Value 10,000   11,769 13,542 13,880 15,471 22,264 21,444 21,880 27,916 31,578 40,876
MSCI EAFE Index Net [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI EAFE Index (Net)                    
Accumulated Value 10,000   11,644 12,572 11,850 11,516 15,940 14,286 14,723 17,450 19,776 24,285
Russell Midcap Growth Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell Midcap Growth Index                    
Accumulated Value 10,000   11,668 13,817 14,767 17,281 23,810 19,355 20,468 24,952 30,750 33,173
Russell 1000 Value Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 1000 Value Index                    
Accumulated Value 10,000   11,466 12,411 12,591 12,385 17,881 18,048 17,227 20,968 22,836 29,355
MSCI All Country World Information Technology Index Net [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI All-Country World Information Technology Index (Net)                    
Accumulated Value 10,000   13,457 16,983 16,991 22,616 33,508 31,520 35,862 47,869 54,812 91,522
MSCI All Country World Information Technology 10 40 Index Net [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI All-Country World Information Technology 10/40 Index (Net)                    
MSCI World Energy Index Net [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   MSCI World Energy Index (Net)                    
Accumulated Value 10,000   10,399 12,550 10,565 7,270 9,846 15,658 14,143 17,744 16,441 23,614
Russell 1000 Growth Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 1000 Growth Index                    
Accumulated Value 10,000   12,027 14,555 15,340 19,367 27,100 25,405 27,831 37,183 43,735 56,267
Russell 3000 Health Care Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 3000 Health Care Index                    
Accumulated Value 10,000   10,965 12,453 13,202 16,206 19,972 20,007 19,979 22,546 21,124 24,850
Bloomberg Commodity Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg Commodity Index                    
Accumulated Value 10,000   9,755 10,830 9,491 7,872 11,511 16,329 12,658 14,043 14,281 20,060
Russell 2000 Index [Member]                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Russell 2000 Index                    
Accumulated Value $ 10,000   $ 12,036 $ 14,535 $ 13,221 $ 12,766 $ 21,008 $ 17,455 $ 16,638 $ 19,985 $ 20,222 $ 28,934