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

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- 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

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16(a))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Borrowings (TDA Senior Notes Outstanding) (Details) - USD ($) $ in Millions	Oct. 06, 2020	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Senior Notes		$ 7,881	$ 7,481
Senior Notes [Member] \| TD Ameritrade [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Senior Notes	$ 3,550
Senior Notes [Member] \| Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Senior Notes		$ 256	256
Fixed Interest Rate		3.225%
Senior Notes [Member] \| Senior Notes Due 2022 [Member] \| TD Ameritrade [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Senior Notes	$ 750
Fixed Interest Rate	2.95%
Senior Notes [Member] \| Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Senior Notes		$ 500	500
Fixed Interest Rate		3.55%
Senior Notes [Member] \| Senior Notes Due 2024 [Member] \| TD Ameritrade [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Senior Notes	$ 400
Fixed Interest Rate	3.75%
Senior Notes [Member] \| Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Senior Notes		$ 375	375
Fixed Interest Rate		3.00%
Senior Notes [Member] \| Senior Notes Due 2025 [Member] \| TD Ameritrade [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Senior Notes	$ 500
Fixed Interest Rate	3.625%
Senior Notes [Member] \| Senior Notes Due 2027 [Member]
Debt Instrument [Line Items]
Senior Notes		$ 650	650
Fixed Interest Rate		3.20%
Senior Notes [Member] \| Senior Notes Due 2027 [Member] \| TD Ameritrade [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Senior Notes	$ 800
Fixed Interest Rate	3.30%
Senior Notes [Member] \| Senior Notes Due 2029 [Member]
Debt Instrument [Line Items]
Senior Notes		$ 600	600
Fixed Interest Rate		4.00%
Senior Notes [Member] \| Senior Notes Due 2029 [Member] \| TD Ameritrade [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Senior Notes	$ 500
Fixed Interest Rate	2.75%
Senior Notes [Member] \| Floating Rate Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Senior Notes		$ 600	$ 600
Senior Notes [Member] \| Floating Rate Senior Notes Due 2021 [Member] \| TD Ameritrade [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Senior Notes	$ 600
Basis spread rate	0.43%