State Street Global Advisors Large Company Index Fund State Street Global Advisors Large Company Index Fund [Member] State Street Global Advisors Large Company Index Fund Legal Entity [Axis] Legal Entity [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Description of Plan [Table] EBP, Description of Plan [Table] EBP, Other Investment EBP, Other Investment [Member] EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Self-Directed Brokerage Account EBP, Self-Directed Brokerage Account [Member] EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Text Block] EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount State Street Global Advisors Small Market Index Fund State Street Global Advisors Small Market Index Fund [Member] State Street Global Advisors Small Market Index Fund Investments Investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Investment Income (Loss), after Investment Expense EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Investment Income (Loss), after Investment Expense EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value EBP003Member EBP 003 [Member] EBP 003 Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] State Street Global Advisors Bond Market Index Fund State Street Global Advisors Bond Market Index Fund [Member] State Street Global Advisors Bond Market Index Fund State Street Global Advisors Target Retirement Income 2035 State Street Global Advisors Target Retirement Income 2035 [Member] State Street Global Advisors Target Retirement Income 2035 EBP, Investment, Fair Value and NAV [Abstract] State Street Global Advisors Target Retirement Income 2055 State Street Global Advisors Target Retirement Income 2055 [Member] State Street Global Advisors Target Retirement Income 2055 EBP, Asset EBP, Asset Statistical Measurement [Axis] Statistical Measurement [Axis] US Treasury and Government US Treasury and Government [Member] EBP, Liability EBP, Liability Amendment Flag Amendment Flag EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] EBP, Form 5500 Caption, Participant Loans EBP, Form 5500 Caption, Participant Loans EBP, Description of Plan and Accounting Change [Abstract] EBP, Contribution, Participating Employer [Domain] EBP, Contribution, Participating Employer [Domain] Investments [Domain] Investments [Domain] EBP, Bond Market Fund EBP, Bond Market Fund [Member] EBP, Bond Market Fund EBP, Schedule of Asset Held for Investment EBP, Schedule of Asset Held for Investment [Text Block] Cover [Abstract] EBP, Contribution, Participating Employer [Axis] EBP, Contribution, Participating Employer [Axis] EBP, Risk and Uncertainty EBP, Risk and Uncertainty [Text Block] EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Allocation to Withdrawing Participant, Not yet Paid EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Allocation to Withdrawing Participant, Not yet Paid EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash EBP, Reconciliation to Form 5500, Payment to Participant, Decrease from Allocation to Withdrawing Participant, Paid EBP, Reconciliation to Form 5500, Payment to Participant, Decrease from Allocation to Withdrawing Participant, Paid Investment Type [Axis] Investment Type [Axis] EBP, Change in Net Asset Available for Benefit, Increase from Contribution EBP, Change in Net Asset Available for Benefit, Increase from Contribution State Street Global Advisors Target Retirement Income State Street Global Advisors Target Retirement Income [Member] State Street Global Advisors Target Retirement Income EBP, Retirement Date Funds EBP, Retirement Date Funds [Member] EBP, Retirement Date Fund EBP, Participant Contribution, Receivable EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover EBP, Form 5500 Caption, Unrealized Appreciation (Depreciation) of Assets EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] EBP, Description of Plan EBP, Description of Plan [Text Block] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] State Street Global Advisors Target Retirement Income 2025 State Street Global Advisors Target Retirement Income 2025 [Member] State Street Global Advisors Target Retirement Income 2025 EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] Interest Income, Operating EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Investment EBP, Employer, Common Stock EBP, Employer, Common Stock [Member] EBP, Schedule of Asset Held for Investment [Abstract] State Street Global Advisors Target Retirement Income 2065 State Street Global Advisors Target Retirement Income 2065 [Member] State Street Global Advisors Target Retirement Income 2065 EBP, Change in Net Asset Available for Benefit, Increase EBP, Change in Net Asset Available for Benefit, Increase Document [Domain] Document [Domain] Investment, Identifier [Axis] Investment, Identifier [Axis] EBP, Asset Held for Investment EBP, Asset Held for Investment EBP, Mid-Size Company Index Fund EBP, Mid-Size Company Index Fund [Member] EBP, Mid-Size Company Index Fund EBP, Small Company Index Fund EBP, Small Company Index Fund [Member] EBP, Small Company Index Fund State Street Global Advisors Target Retirement Income 2070 State Street Global Advisors Target Retirement Income 2070 [Member] State Street Global Advisors Target Retirement Income 2070 State Street Global Advisors Target Retirement Income 2030 State Street Global Advisors Target Retirement Income 2030 [Member] State Street Global Advisors Target Retirement Income 2030 Document Information [Line Items] Document Information [Line Items] EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Table] Beginning of Period Beginning of Period [Member] Beginning of Period EBP, Statement of Change in Net Asset Available for Benefit [Abstract] EBP, Related Party and Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] EBP, Excess Contribution Payable EBP, Excess Contribution Payable EBP, Receivable EBP, Receivable EBP, Employer Contribution, Receivable EBP, Employer Contribution, Receivable EBP, Participant Contribution, Automatic, Deferral Rate EBP, Participant Contribution, Automatic, Deferral Rate EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] State Street Global Advisors Government Short Term Investment Fund State Street Global Advisors Government Short Term Investment Fund [Member] State Street Global Advisors Government Short Term Investment Fund EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Large Company Index Fund EBP, Large Company Index Fund [Member] EBP, Large Company Index Fund EBP 001 EBP 001 [Member] EBP 001 EBP, Note Receivable From Participant, Basis Spread on Variable Rate EBP, Note Receivable From Participant, Basis Spread on Variable Rate EBP, Note Receivable From Participant, Basis Spread on Variable Rate State Street Global Advisors Mid Size Company Index Fund State Street Global Advisors Mid Size Company Index Fund [Member] State Street Global Advisors Mid Size Company Index Fund EBP, Tax Status [Abstract] EBP, Employer, Common Stock Fund EBP, Employer, Common Stock Fund [Member] Document Period End Date Document Period End Date EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] State Street Global Advisors Target Retirement Income 2060 State Street Global Advisors Target Retirement Income 2060 [Member] State Street Global Advisors Target Retirement Income 2060 EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] Employee Benefit Plan Net Asset Available For Benefit, percent Employee Benefit Plan Net Asset Available For Benefit, percent Employee Benefit Plan Net Asset Available For Benefit, percent State Street Global Advisors Target Retirement Income 2040 State Street Global Advisors Target Retirement Income 2040 [Member] State Street Global Advisors Target Retirement Income 2040 EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits EBP, Reconciliation of Financial Statement to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Loans to participants (maturing through 2029) Loans to participants (maturing through 2029) [Member] Loans to participants (maturing through 2029) EBP, Value of participant’s investment, percent EBP, Value of participant’s investment, percent EBP, Value of participant’s investment, percent End of Period End of Period [Member] End of Period EBP, Participant Contribution, Receivable EBP, Participant Contribution, Receivable Document Type Document Type EBP, Schedule of Asset Acquired and Disposed of within Year [Abstract] Entity Central Index Key Entity Central Index Key EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Investment Income (Loss), before Investment Expense EBP, Change in Net Asset Available for Benefit, Decrease from Investment Expense Common Collective Trust Common Collective Trust [Member] EBP, Risk and Uncertainty [Abstract] State Street Global Advisors International Index Fund State Street Global Advisors International Index Fund [Member] State Street Global Advisors International Index Fund EBP, International Index Fund EBP, International Index Fund [Member] EBP, International Index Fund Charles Schwab & Co. Self-directed Brokerage Account Charles Schwab & Co. Self-directed Brokerage Account [Member] Charles Schwab & Co. Self-directed Brokerage Account EBP, Nonconsolidated, Master Trust EBP, Nonconsolidated, Master Trust [Member] EBP, Form 5500 Caption, Receivables, Other EBP, Form 5500 Caption, Receivables, Other EBP, Summary of Accounting Policy EBP, Summary of Accounting Policy [Text Block] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Entity Registrant Name Entity Registrant Name Invesco Stable Value Trust Fund Invesco Stable Value Trust Fund [Member] Invesco Stable Value Trust Fund EBP, Subsequent Event [Abstract] EBP, Subsequent Event EBP, Subsequent Event [Text Block] EBP, Participant Contribution, Pretax, Maximum Annual Compensation, Amount EBP, Participant Contribution, Pretax, Maximum Annual Compensation, Amount EBP, Tax Status EBP, Tax Status [Text Block] EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Document Information [Table] Document Information [Table] EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment State Street Global Advisors Target Retirement Income 2045 State Street Global Advisors Target Retirement Income 2045 [Member] State Street Global Advisors Target Retirement Income 2045 EBP, Reconciliation to Form 5500, Payment to Participant, Increase from Allocation to Withdrawing Participant, Not yet Paid EBP, Reconciliation to Form 5500, Payment to Participant, Increase from Allocation to Withdrawing Participant, Not yet Paid Entity [Domain] Entity [Domain] EBP, Net Asset Available for Benefit EBP, Net Asset Available for Benefit State Street Global Advisors Target Retirement Income 2050 State Street Global Advisors Target Retirement Income 2050 [Member] State Street Global Advisors Target Retirement Income 2050 EBP, Employer Contribution, Matching Percentage EBP, Employer Contribution, Matching Percentage Document Information, Document [Axis] Document Information, Document [Axis] EBP, Form 5500 Caption, Net Assets EBP, Form 5500 Caption, Net Assets EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items]