110002 - Disclosure - State Street Blackstone High Income ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 110003 - Disclosure - State Street Blackstone High Income ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 110004 - Disclosure - State Street Blackstone High Income ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 110005 - Disclosure - State Street Blackstone High Income ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 110006 - Disclosure - State Street Blackstone High Income ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 120010 - Disclosure - State Street Blackstone High Income ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 120020 - Disclosure - State Street Blackstone High Income ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 120030 - Disclosure - State Street Blackstone High Income ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 120040 - Disclosure - State Street Blackstone High Income ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 120045 - Disclosure - State Street Blackstone High Income ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 120050 - Disclosure - State Street Blackstone High Income ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 120060 - Disclosure - State Street Blackstone High Income ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 120070 - Disclosure - State Street Blackstone High Income ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 110000 - Disclosure - State Street Blackstone High Income ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 110001 - Disclosure - State Street Blackstone High Income ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 210002 - Disclosure - State Street Blackstone Senior Loan ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 210003 - Disclosure - State Street Blackstone Senior Loan ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 210004 - Disclosure - State Street Blackstone Senior Loan ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 210005 - Disclosure - State Street Blackstone Senior Loan ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 210006 - Disclosure - State Street Blackstone Senior Loan ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 220010 - Disclosure - State Street Blackstone Senior Loan ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 220020 - Disclosure - State Street Blackstone Senior Loan ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 220030 - Disclosure - State Street Blackstone Senior Loan ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 220040 - Disclosure - State Street Blackstone Senior Loan ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 220045 - Disclosure - State Street Blackstone Senior Loan ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 220050 - Disclosure - State Street Blackstone Senior Loan ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 220060 - Disclosure - State Street Blackstone Senior Loan ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 220070 - Disclosure - State Street Blackstone Senior Loan ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 210000 - Disclosure - State Street Blackstone Senior Loan ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 210001 - Disclosure - State Street Blackstone Senior Loan ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 310002 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 310003 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 310004 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 310005 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 310006 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 320010 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 320020 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 320030 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 320040 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 320045 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 320050 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 320060 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 320070 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 310000 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 310001 - Disclosure - State Street DoubleLine Short Duration Total Return Tactical ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 410002 - Disclosure - State Street DoubleLine Total Return Tactical ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 410003 - Disclosure - State Street DoubleLine Total Return Tactical ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 410004 - Disclosure - State Street DoubleLine Total Return Tactical ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 410005 - Disclosure - State Street DoubleLine Total Return Tactical ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 410006 - Disclosure - State Street DoubleLine Total Return Tactical ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 420010 - Disclosure - State Street DoubleLine Total Return Tactical ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 420020 - Disclosure - State Street DoubleLine Total Return Tactical ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 420030 - Disclosure - State Street DoubleLine Total Return Tactical ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 420040 - Disclosure - State Street DoubleLine Total Return Tactical ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 420045 - Disclosure - State Street DoubleLine Total Return Tactical ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 420050 - Disclosure - State Street DoubleLine Total Return Tactical ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 420060 - Disclosure - State Street DoubleLine Total Return Tactical ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 420070 - Disclosure - State Street DoubleLine Total Return Tactical ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 410000 - Disclosure - State Street DoubleLine Total Return Tactical ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 410001 - Disclosure - State Street DoubleLine Total Return Tactical ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 510002 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 510003 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 510004 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 510005 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 510006 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 520010 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 520020 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 520030 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 520040 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 520045 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 520050 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 520060 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 520070 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 510000 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 510001 - Disclosure - State Street Loomis Sayles Opportunistic Bond ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 610002 - Disclosure - State Street Nuveen Municipal Bond ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 610003 - Disclosure - State Street Nuveen Municipal Bond ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 610004 - Disclosure - State Street Nuveen Municipal Bond ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 610005 - Disclosure - State Street Nuveen Municipal Bond ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 610006 - Disclosure - State Street Nuveen Municipal Bond ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 620010 - Disclosure - State Street Nuveen Municipal Bond ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 620020 - Disclosure - State Street Nuveen Municipal Bond ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 620030 - Disclosure - State Street Nuveen Municipal Bond ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 620040 - Disclosure - State Street Nuveen Municipal Bond ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 620045 - Disclosure - State Street Nuveen Municipal Bond ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 620050 - Disclosure - State Street Nuveen Municipal Bond ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 620060 - Disclosure - State Street Nuveen Municipal Bond ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 620070 - Disclosure - State Street Nuveen Municipal Bond ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 610000 - Disclosure - State Street Nuveen Municipal Bond ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 610001 - Disclosure - State Street Nuveen Municipal Bond ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 710002 - Disclosure - State Street Fixed Income Sector Rotation ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 710003 - Disclosure - State Street Fixed Income Sector Rotation ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 710004 - Disclosure - State Street Fixed Income Sector Rotation ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 710005 - Disclosure - State Street Fixed Income Sector Rotation ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 710006 - Disclosure - State Street Fixed Income Sector Rotation ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 720010 - Disclosure - State Street Fixed Income Sector Rotation ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 720020 - Disclosure - State Street Fixed Income Sector Rotation ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 720030 - Disclosure - State Street Fixed Income Sector Rotation ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 720040 - Disclosure - State Street Fixed Income Sector Rotation ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 720045 - Disclosure - State Street Fixed Income Sector Rotation ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 720050 - Disclosure - State Street Fixed Income Sector Rotation ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 720060 - Disclosure - State Street Fixed Income Sector Rotation ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 720070 - Disclosure - State Street Fixed Income Sector Rotation ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 710000 - Disclosure - State Street Fixed Income Sector Rotation ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 710001 - Disclosure - State Street Fixed Income Sector Rotation ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 810002 - Disclosure - State Street Global Allocation ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 810003 - Disclosure - State Street Global Allocation ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 810004 - Disclosure - State Street Global Allocation ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 810005 - Disclosure - State Street Global Allocation ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 810006 - Disclosure - State Street Global Allocation ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 820010 - Disclosure - State Street Global Allocation ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 820020 - Disclosure - State Street Global Allocation ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 820030 - Disclosure - State Street Global Allocation ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 820040 - Disclosure - State Street Global Allocation ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 820045 - Disclosure - State Street Global Allocation ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 820050 - Disclosure - State Street Global Allocation ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 820060 - Disclosure - State Street Global Allocation ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 820070 - Disclosure - State Street Global Allocation ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 810000 - Disclosure - State Street Global Allocation ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 810001 - Disclosure - State Street Global Allocation ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 910002 - Disclosure - State Street Income Allocation ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 910003 - Disclosure - State Street Income Allocation ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 910004 - Disclosure - State Street Income Allocation ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 910005 - Disclosure - State Street Income Allocation ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 910006 - Disclosure - State Street Income Allocation ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 920010 - Disclosure - State Street Income Allocation ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 920020 - Disclosure - State Street Income Allocation ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 920030 - Disclosure - State Street Income Allocation ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 920040 - Disclosure - State Street Income Allocation ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 920045 - Disclosure - State Street Income Allocation ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 920050 - Disclosure - State Street Income Allocation ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 920060 - Disclosure - State Street Income Allocation ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 920070 - Disclosure - State Street Income Allocation ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 910000 - Disclosure - State Street Income Allocation ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 910001 - Disclosure - State Street Income Allocation ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 1010002 - Disclosure - State Street Multi-Asset Real Return ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1010003 - Disclosure - State Street Multi-Asset Real Return ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1010004 - Disclosure - State Street Multi-Asset Real Return ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1010005 - Disclosure - State Street Multi-Asset Real Return ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 1010006 - Disclosure - State Street Multi-Asset Real Return ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 1020010 - Disclosure - State Street Multi-Asset Real Return ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1020020 - Disclosure - State Street Multi-Asset Real Return ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1020030 - Disclosure - State Street Multi-Asset Real Return ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 1020040 - Disclosure - State Street Multi-Asset Real Return ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1020045 - Disclosure - State Street Multi-Asset Real Return ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 1020050 - Disclosure - State Street Multi-Asset Real Return ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1020060 - Disclosure - State Street Multi-Asset Real Return ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1020070 - Disclosure - State Street Multi-Asset Real Return ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1010000 - Disclosure - State Street Multi-Asset Real Return ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1010001 - Disclosure - State Street Multi-Asset Real Return ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 1110002 - Disclosure - State Street Ultra Short Term Bond ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1110003 - Disclosure - State Street Ultra Short Term Bond ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1110004 - Disclosure - State Street Ultra Short Term Bond ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1110005 - Disclosure - State Street Ultra Short Term Bond ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 1110006 - Disclosure - State Street Ultra Short Term Bond ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 1120010 - Disclosure - State Street Ultra Short Term Bond ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1120020 - Disclosure - State Street Ultra Short Term Bond ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1120030 - Disclosure - State Street Ultra Short Term Bond ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 1120040 - Disclosure - State Street Ultra Short Term Bond ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1120045 - Disclosure - State Street Ultra Short Term Bond ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 1120050 - Disclosure - State Street Ultra Short Term Bond ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1120060 - Disclosure - State Street Ultra Short Term Bond ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1120070 - Disclosure - State Street Ultra Short Term Bond ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1110000 - Disclosure - State Street Ultra Short Term Bond ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1110001 - Disclosure - State Street Ultra Short Term Bond ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 1210002 - Disclosure - State Street US Sector Rotation ETF Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 1210003 - Disclosure - State Street US Sector Rotation ETF Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 1210004 - Disclosure - State Street US Sector Rotation ETF Investment Strategy link:presentationLink link:definitionLink link:calculationLink 1210005 - Disclosure - State Street US Sector Rotation ETF Investment Risks link:presentationLink link:definitionLink link:calculationLink 1210006 - Disclosure - State Street US Sector Rotation ETF Performance Management link:presentationLink link:definitionLink link:calculationLink 1220010 - Disclosure - State Street US Sector Rotation ETF Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 1220020 - Disclosure - State Street US Sector Rotation ETF Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 1220030 - Disclosure - State Street US Sector Rotation ETF Expense Example link:presentationLink link:definitionLink link:calculationLink 1220040 - Disclosure - State Street US Sector Rotation ETF Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 1220045 - Disclosure - State Street US Sector Rotation ETF Risks Data link:presentationLink link:definitionLink link:calculationLink 1220050 - Disclosure - State Street US Sector Rotation ETF Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1220060 - Disclosure - State Street US Sector Rotation ETF Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 1220070 - Disclosure - State Street US Sector Rotation ETF Market Index Performance link:presentationLink link:definitionLink link:calculationLink 1210000 - Disclosure - State Street US Sector Rotation ETF N-1A Cover link:presentationLink link:definitionLink link:calculationLink 1210001 - Disclosure - State Street US Sector Rotation ETF N-1A Supplement link:presentationLink link:definitionLink link:calculationLink State Street Blackstone High Income ETF S000075269 [Member] C000234159 [Member] Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)[Member] State Street Blackstone High Income Composite Index (reflects no deduction for fees, expenses or taxes)[Member] Market Risk [Member] Debt Securities Risk [Member] Senior Loan Risk [Member] Below Investment Grade Securities Risk [Member] Credit Risk [Member] Fluctuation of Net Asset Value Share Premiums and Discounts Risk [Member] Affiliated ETF Risk [Member] Cash Transaction Risk [Member] Collateralized Loan Obligation Risk [Member] Exchange Traded Funds Risk [Member] Forward Contracts Risk [Member] Futures Contract Risk [Member] Income Risk [Member] Liquidity Risk [Member] Management Risk [Member] Models and Data Risk [Member] Non Senior Loans and Other Debt Securities Risk [Member] Non U S Securities Risk [Member] Portfolio Turnover Risk [Member] Repurchase Agreement Risk [Member] Restricted Securities Risk [Member] Reverse Repurchase Agreement Risk [Member] Swaps Risk [Member] Systematic Strategies Related to Bond Investment Risk [Member] US Government Securities Risk [Member] US Treasury Obligations Risk [Member] Valuation Risk [Member] Variable and Floating Rate Securities Risk [Member] State Street Blackstone Senior Loan ETF S000033064 [Member] C000101921 [Member] Markit iBoxx USD Liquid Leveraged Loan Index (reflects no deduction for fees, expenses or taxes)[Member] Morningstar LSTA US Leveraged Loan 100 Index (reflects no deduction for fees, expenses or taxes)[Member] Financial Sector Risk [Member] State Street DoubleLine Short Duration Total Return Tactical ETF S000052162 [Member] C000164160 [Member] Bloomberg U.S. Aggregate 1-3 Year Index (reflects no deduction for fees, expenses or taxes)[Member] Asset Backed and Mortgage Backed Securities Risk [Member] Bank Loan Risk [Member] Collateralized Debt Obligations Risk [Member] Collateralized Bond Obligation Risk [Member] Collateralized Mortgage Obligation Risk [Member] Currency Risk [Member] Emerging Markets Risk [Member] Exchange Traded Products Risk [Member] Inflation Indexed Securities Risk [Member] Interest Rate Only and Principal Only Securities Risk [Member] Investment in ETNs [Member] Municipal Obligations Risk [Member] Political Risk [Member] Preferred Securities Risk [Member] Privately Issued Securities Risk [Member] REMIC Risk [Member] Sovereign Debt Obligations Risk [Member] Unconstrained Sector Risk [Member] Zero Coupon Bond Risk [Member] State Street DoubleLine Total Return Tactical ETF S000046314 [Member] C000144728 [Member] Perpetual Bond Risk [Member] When Issued TBA and Delayed Delivery Securities Risk [Member] State Street Loomis Sayles Opportunistic Bond ETF S000072972 [Member] C000229692 [Member] State Street Loomis Sayles Opportunistic Bond Composite Index (reflects no deduction for fees, expenses or taxes)[Member] Contracts for Difference Risk [Member] Convertible Securities Risk [Member] Options Risk [Member] Rights or Warrants Risk [Member] Structured Notes Risk [Member] State Street Nuveen Municipal Bond ETF S000070917 [Member] C000225200 [Member] Bloomberg 3-15 Year Blend (2-17) Municipal Bond Index (reflects no deduction for fees, expenses or taxes)[Member] Cash Position Risk [Member] Money Market Fund Investment Risk [Member] Tax Exemption Risk [Member] Value Investing Risk [Member] When Issued Securities Risk [Member] State Street Fixed Income Sector Rotation ETF S000055185 [Member] C000173571 [Member] Asset Allocation Risk [Member] Mortgage Related and Other Asset Backed Securities Risk [Member] State Street Global Allocation ETF S000033062 [Member] C000101919 [Member] MSCI ACWI IMI Index (reflects no deduction for fees, expenses or taxes other than withholding taxes on reinvested dividends)[Member] Modeling Risk [Member] Affiliated ETP Risk [Member] Commodities Risk [Member] Depositary Receipts Risk [Member] Equity Investing Risk [Member] Large Capitalization Securities Risk [Member] Mid Capitalization Securities Risk [Member] Real Estate Sector Risk [Member] REIT Risk [Member] Small Mid and Micro Capitalization Securities Risk [Member] Tax Risk Qualifying Income [Member] State Street Income Allocation ETF S000033060 [Member] C000101917 [Member] MSCI World Index (reflects no deduction for fees, expenses or taxes other than withholding taxes on reinvested dividends)[Member] Bloomberg US Long Government/Credit Bond Index (reflects no deduction for fees, expenses or taxes)[Member] Infrastructure Related Companies Risk [Member] State Street Multi-Asset Real Return ETF S000033059 [Member] C000101916 [Member] Bloomberg U.S. Government Inflation-Linked Bond Index (reflects no deduction for fees, expenses or taxes)[Member] DBIQ Optimum Yield Diversified Commodity Index Excess Return (reflects no deduction for fees, expenses or taxes)[Member] Agriculture Companies Risk [Member] Derivatives Risk [Member] Energy Sector Risk [Member] Industrial Sector Risk [Member] Materials Sector Risk [Member] Metals and Mining Companies Risk [Member] Natural Resources Risk [Member] Utilities Sector Risk [Member] State Street Ultra Short Term Bond ETF S000038607 [Member] C000119098 [Member] Bloomberg US Treasury Bellwether 3 Month Index (reflects no deduction for fees, expenses or taxes)[Member] Low Short Term Interest Rates Risk [Member] Non Diversification Risk [Member] State Street US Sector Rotation ETF S000054091 [Member] C000170017 [Member] S&P 500 Index (reflects no deduction for fees, expenses or taxes)[Member] Communication Services Sector Risk [Member] Consumer Discretionary Sector Risk [Member] Consumer Staples Sector Risk [Member] Health Care Sector Risk [Member] Technology Sector Risk [Member]