Annual Fund Operating Expenses (dei_DocumentInformationDocumentAxis, (Oppenheimer Core Bond Fund))	0 Months Ended
	Apr. 27, 2012
Class A
Operating Expenses:
Management Fees	0.48%
Distribution and/or Service (12b-1) Fees	0.25%
Other Expenses	0.33%
Acquired Fund Fee and Expenses	0.02%
Total Annual Fund Operating Expenses	1.08%
Fee Waiver and/or Expense Reimbursement	(0.15%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.93%
Class B
Operating Expenses:
Management Fees	0.48%
Distribution and/or Service (12b-1) Fees	1.00%
Other Expenses	0.74%
Acquired Fund Fee and Expenses	0.02%
Total Annual Fund Operating Expenses	2.24%
Fee Waiver and/or Expense Reimbursement	(0.56%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	1.68%
Class C
Operating Expenses:
Management Fees	0.48%
Distribution and/or Service (12b-1) Fees	1.00%
Other Expenses	0.34%
Acquired Fund Fee and Expenses	0.02%
Total Annual Fund Operating Expenses	1.84%
Fee Waiver and/or Expense Reimbursement	(0.16%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	1.68%
Class I
Operating Expenses:
Management Fees	0.48%	[2]
Distribution and/or Service (12b-1) Fees	none	[2]
Other Expenses	0.06%	[2]
Acquired Fund Fee and Expenses	0.02%	[2]
Total Annual Fund Operating Expenses	0.56%	[2]
Fee Waiver and/or Expense Reimbursement	(0.02%)	[1],[2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.54%	[2]
Class N
Operating Expenses:
Management Fees	0.48%
Distribution and/or Service (12b-1) Fees	0.50%
Other Expenses	0.38%
Acquired Fund Fee and Expenses	0.02%
Total Annual Fund Operating Expenses	1.38%
Fee Waiver and/or Expense Reimbursement	(0.20%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	1.18%
Class Y
Operating Expenses:
Management Fees	0.48%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.04%
Acquired Fund Fee and Expenses	0.02%
Total Annual Fund Operating Expenses	0.54%
Fee Waiver and/or Expense Reimbursement	(0.02%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.52%

[1] The Manager has voluntarily agreed to waive fees and/or reimburse Fund expenses in an amount equal to the indirect management fees incurred through the Fund's investment in underlying funds managed by the Manager or its affiliates. The Fund's transfer agent has voluntarily agreed to limit its fees for Classes B, C, N and Y to 0.35% of average annual net assets per class per fiscal year, and to 0.30% of average net assets per fiscal year for Class A. The Manager has also voluntarily agreed to waive fees and/or reimburse the Fund for certain expenses in order to limit "Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement" (excluding any applicable dividend expense, taxes, interest and fees from borrowing, any subsidiary expenses, Acquired Fund Fees and Expenses, brokerage commissions, extraordinary expenses and certain other Fund expenses) to annual rates of 0.90% for Class A shares, 1.65% for Class B shares, 1.65% for Class C shares, 1.15% for Class N shares, and 0.65% for Class Y shares as calculated on the daily net assets of the Fund. Each of these fee waivers and/or expense limitations may not be amended or withdrawn until one year from the date of this prospectus.

[2] Estimated expenses for the first full fiscal year that Class I shares are offered. Class I shares will first be offered on the date of this prospectus.