The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 954
-SubTopic 440
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6491277&loc=d3e6429-115629

Name:	us-gaap_EscrowDeposit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Contingencies and Commitments - Narrative (Details) $ in Millions	6 Months Ended
	May 31, 2021 USD ($)	May 31, 2020 USD ($)	Jun. 21, 2021 lawsuit classAction	May 02, 2019 lawsuit
Loss Contingencies [Line Items]
Number of lawsuits \| lawsuit				2
Reserve funds	$ 939	$ 423
Escrow deposit	166
Subsequent Event
Loss Contingencies [Line Items]
Number of lawsuits, COVID-19 \| lawsuit			72
Number of class actions, COVID-19 \| classAction			10
Prepaid expenses and other
Loss Contingencies [Line Items]
Escrow deposit	$ 136