Debt Instrument, Maximum Active Loan Limit

No definition available.

Name:	tiaareal_DebtInstrumentMaximumActiveLoanLimit
Namespace Prefix:	tiaareal_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Maximum Borrowing Capacity, Amount Terminated

+ References

No definition available.

+ Details

Name:	tiaareal_LineOfCreditFacilityMaximumBorrowingCapacityAmountTerminated
Namespace Prefix:	tiaareal_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line Of Credit Facility, Minimum Funding Requirement

+ References

No definition available.

+ Details

Name:	tiaareal_LineOfCreditFacilityMinimumFundingRequirement
Namespace Prefix:	tiaareal_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of commitment fees for the unused borrowing capacity under the long-term financing arrangement that is available to the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentUnusedBorrowingCapacityFee
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_CreditFacilityAxis=tiaareal_SeniorUnsecuredRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=tiaareal_EurodollarLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=tiaareal_AlternateBaseRateLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_FederalFundsEffectiveSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=tiaareal_UnsecuredRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Line of Credit (Details)		12 Months Ended
Line of Credit (Details)	Sep. 20, 2018 USD ($) loan	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	May 31, 2021 USD ($)
Debt Instrument [Line Items]
Commitment fee		$ 2,500,000	$ 4,900,000
Senior Unsecured Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Maximum capacity	$ 500,000,000
Senior Unsecured Revolving Credit Facility \| Line of Credit \| Eurodollar Loan
Debt Instrument [Line Items]
Minimum funding requirement	$ 5,000,000
Line of credit, term (or less)	12 months
Maximum active loan limit \| loan	5
Senior Unsecured Revolving Credit Facility \| Line of Credit \| Alternate Base Rate Loan
Debt Instrument [Line Items]
Minimum funding requirement	$ 5,000,000
Senior Unsecured Revolving Credit Facility \| Line of Credit \| Alternate Base Rate Loan \| Federal Reserve Bank of New York
Debt Instrument [Line Items]
Interest Rate	0.50%
Senior Unsecured Revolving Credit Facility \| Line of Credit \| Alternate Base Rate Loan \| Adjusted LIBOR
Debt Instrument [Line Items]
Interest Rate	1.00%
Unsecured Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Maximum capacity		$ 500,000,000.0
Maximum capacity, amount terminated				$ 500,000,000