Debt Instrument, Number Of Quarterly Interest Payments Allowed To Defer

No definition available.

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- Definition

Investment in Trust, Carrying Value

+ References

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

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

+ References

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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.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Short-Term Borrowings and Long-Term Debt - Long-term Debt (Details)						1 Months Ended	12 Months Ended
	Apr. 29, 2022 USD ($)	Oct. 28, 2021 USD ($)	May 13, 2021 USD ($)	Feb. 02, 2021 USD ($)	Jun. 05, 2020 USD ($)	Jan. 31, 2015 USD ($)	Dec. 31, 2022 USD ($) quarterly_interest_payments	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Long-term debt							$ 5,370,000,000	$ 2,570,000,000
3.50% Senior Notes
Debt Instrument [Line Items]
Stated interest rate							3.50%
3.125% Senior Notes
Debt Instrument [Line Items]
Stated interest rate							3.125%
1.800% Senior Notes
Debt Instrument [Line Items]
Stated interest rate							1.80%
2.100% Senior Notes
Debt Instrument [Line Items]
Stated interest rate							2.10%
1.800% Senior Notes
Debt Instrument [Line Items]
Stated interest rate							1.80%
4.345% Senior Fixed Rate/Floating Rate Notes
Debt Instrument [Line Items]
Stated interest rate							4.345%
4.570% Senior Fixed Rate/Floating Rate Notes
Debt Instrument [Line Items]
Stated interest rate							4.57%
Senior Notes \| 3.50% Senior Notes
Debt Instrument [Line Items]
Principal value (less than $1 million for "Trust I")						$ 350,000,000	$ 350,000,000
Stated interest rate						3.50%
Proceeds from issuance of senior notes, net of discount and issuance cost						$ 346,000,000
Long-term debt							349,000,000	349,000,000
Debt issuance costs							1,000,000
Discount on debt (less than $1 million for all but 1.800% Senior Notes due 2026 and 2031)							1,000,000
Senior Notes \| 3.125% Senior Notes
Debt Instrument [Line Items]
Principal value (less than $1 million for "Trust I")					$ 500,000,000		500,000,000
Stated interest rate					3.125%
Proceeds from issuance of senior notes, net of discount and issuance cost					$ 496,000,000
Long-term debt							496,000,000	496,000,000
Debt issuance costs							4,000,000
Discount on debt (less than $1 million for all but 1.800% Senior Notes due 2026 and 2031)							1,000,000
Senior Notes \| 1.800% Senior Notes
Debt Instrument [Line Items]
Principal value (less than $1 million for "Trust I")				$ 500,000,000			$ 500,000,000
Stated interest rate				1.80%			1.80%
Proceeds from issuance of senior notes, net of discount and issuance cost				$ 494,000,000
Long-term debt							$ 495,000,000	494,000,000
Debt issuance costs							4,000,000
Discount on debt (less than $1 million for all but 1.800% Senior Notes due 2026 and 2031)							1,000,000
Senior Notes \| 2.100% Senior Notes
Debt Instrument [Line Items]
Principal value (less than $1 million for "Trust I")			$ 500,000,000				$ 500,000,000
Stated interest rate			2.10%				2.10%
Proceeds from issuance of senior notes, net of discount and issuance cost			$ 496,000,000
Long-term debt							$ 497,000,000	496,000,000
Debt issuance costs							3,000,000
Discount on debt (less than $1 million for all but 1.800% Senior Notes due 2026 and 2031)							1,000,000
Senior Notes \| 1.800% Senior Notes
Debt Instrument [Line Items]
Principal value (less than $1 million for "Trust I")		$ 650,000,000					$ 650,000,000
Stated interest rate		1.80%					1.80%
Proceeds from issuance of senior notes, net of discount and issuance cost		$ 644,000,000
Long-term debt							$ 646,000,000	645,000,000
Debt issuance costs							3,000,000
Discount on debt (less than $1 million for all but 1.800% Senior Notes due 2026 and 2031)							1,000,000
Senior Notes \| 4.345% Senior Fixed Rate/Floating Rate Notes
Debt Instrument [Line Items]
Principal value (less than $1 million for "Trust I")	$ 350,000,000						350,000,000
Stated interest rate	4.435%
Proceeds from issuance of senior notes, net of discount and issuance cost	$ 348,000,000
Long-term debt							348,000,000	0
Debt issuance costs							2,000,000
Senior Notes \| 4.570% Senior Fixed Rate/Floating Rate Notes
Debt Instrument [Line Items]
Principal value (less than $1 million for "Trust I")	$ 450,000,000						450,000,000
Stated interest rate	4.57%
Proceeds from issuance of senior notes, net of discount and issuance cost	$ 447,000,000
Long-term debt							448,000,000	0
Debt issuance costs							2,000,000
Junior subordinated debentures
Debt Instrument [Line Items]
Principal value (less than $1 million for "Trust I")							100,000,000
Long-term debt							91,000,000	$ 90,000,000
Junior subordinated debentures \| Boston Private Capital Trust II Junior Subordinated Debentures (Trust II)
Debt Instrument [Line Items]
Principal value (less than $1 million for "Trust I")							$ 100,000,000
Basis spread on variable rate							1.68%
Number of quarterly interest payments allowed to defer \| quarterly_interest_payments							20
Effective percentage on debt							2.676%
Investment in trust, carrying value							$ 3,000,000
Junior subordinated debentures \| Boston Private Capital Trust I Junior Subordinated Debenture (Trust I)
Debt Instrument [Line Items]
Principal value (less than $1 million for "Trust I")							$ 1,000,000
Stated interest rate		4.875%
Effective percentage on debt							4.875%
Investment in trust, carrying value							$ 3,000,000