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Notes Payable, Unsecured Notes and Credit Facility (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Notes Payable, Unsecured Notes and Credit Facility    
Total notes payable and unsecured notes $ 6,448,138,000us-gaap_NotesPayable $ 6,019,571,000us-gaap_NotesPayable
Variable rate unsecured credit facility 0us-gaap_LineOfCredit 0us-gaap_LineOfCredit
Total mortgage notes payable, unsecured notes and Credit Facility 6,448,138,000us-gaap_LongTermDebt 6,019,571,000us-gaap_LongTermDebt
Unsecured notes    
Notes Payable, Unsecured Notes and Credit Facility    
Fixed rate notes 2,750,000,000us-gaap_LongtermDebtPercentageBearingFixedInterestAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
2,600,000,000us-gaap_LongtermDebtPercentageBearingFixedInterestAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
Total notes payable and unsecured notes 3,000,000,000us-gaap_NotesPayable
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
 
Amount of debt discount 6,735,000us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
5,291,000us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_UnsecuredDebtMember
Term loan    
Notes Payable, Unsecured Notes and Credit Facility    
Variable rate notes 250,000,000us-gaap_LongtermDebtPercentageBearingVariableInterestAmount
/ us-gaap_LongtermDebtTypeAxis
= avb_VariableRateUnsecuredTermLoanMember
0us-gaap_LongtermDebtPercentageBearingVariableInterestAmount
/ us-gaap_LongtermDebtTypeAxis
= avb_VariableRateUnsecuredTermLoanMember
Mortgage notes payable    
Notes Payable, Unsecured Notes and Credit Facility    
Fixed rate notes 2,400,677,000us-gaap_LongtermDebtPercentageBearingFixedInterestAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
2,407,962,000us-gaap_LongtermDebtPercentageBearingFixedInterestAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
Variable rate notes 1,047,461,000us-gaap_LongtermDebtPercentageBearingVariableInterestAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
1,011,609,000us-gaap_LongtermDebtPercentageBearingVariableInterestAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
Total notes payable and unsecured notes 3,334,039,000us-gaap_NotesPayable
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
 
Amount of debt premium 84,449,000us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
120,071,000us-gaap_DebtInstrumentUnamortizedPremium
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
Variable rate unsecured credit facility    
Notes Payable, Unsecured Notes and Credit Facility    
Variable rate unsecured credit facility $ 0us-gaap_LineOfCredit
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
$ 0us-gaap_LineOfCredit
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember