C000005423C000166328MSCI All Country World Index NetMSCI All Country World Index Net_41358MSCI All Country World Index NetMSCI All Country World Index Net_41357Morningstar Moderate Target Risk IndexMorningstar Moderate Target Risk Index_41358Morningstar Moderate Target Risk IndexMorningstar Moderate Target Risk Index_41357Investment Type [Axis]Common StocksU.S. Government Agency Obligations (Excluding Mortgage-Backed)U.S. Government & Agency Mortgage-Backed SecuritiesCorporate BondsBond FundsEquity FundsNon-U.S. Government Mortgage-Backed SecuritiesAsset-Backed SecuritiesSecurities Lending CollateralOther Holdings GroupingU.S. Treasury NotesT. Rowe Price Real Assets Fund - I ClassT. Rowe Price Institutional High Yield Fund - Institutional ClassFederal National Mortgage Assn.NVIDIAU.S. Treasury BondsMicrosoftAlphabetAppleAmazon.comNo Trading Symbol [Flag]AssetsNetInvestmentCompanyPortfolioTurnover