Intangible Assets by Major Class [Line Items]

No definition available.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

+ References

No definition available.

+ Details

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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Goodwill and intangible assets - Intangible Assets by Type (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 4,838	$ 4,881
Accumulated amortization	(1,812)	(1,774)
Net carrying amount	3,026	3,107	$ 3,124	$ 3,220
Finite-lived Intangible Assets
Intangible Assets by Major Class [Line Items]
Gross carrying amount	2,257	2,296
Accumulated amortization	(1,812)	(1,774)
Net carrying amount	$ 445	522
Finite-lived Intangible Assets \| Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	10 years
Finite-lived Intangible Assets \| Customer contracts—Investment Services
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 1,482	1,520
Accumulated amortization	(1,228)	(1,214)
Net carrying amount	$ 254	306
Finite-lived Intangible Assets \| Customer contracts—Investment Services \| Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	10 years
Finite-lived Intangible Assets \| Customer relationships
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 711	712
Accumulated amortization	(563)	(544)
Net carrying amount	$ 148	168
Finite-lived Intangible Assets \| Customer relationships \| Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	10 years
Finite-lived Intangible Assets \| Other
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 64	64
Accumulated amortization	(21)	(16)
Net carrying amount	$ 43	48
Finite-lived Intangible Assets \| Other \| Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	14 years
Indefinite-lived Intangible Assets
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 2,581	2,585
Net carrying amount	2,581	2,585
Indefinite-lived Intangible Assets \| Tradenames
Intangible Assets by Major Class [Line Items]
Gross carrying amount	1,292	1,293
Net carrying amount	1,292	1,293
Indefinite-lived Intangible Assets \| Customer relationships
Intangible Assets by Major Class [Line Items]
Gross carrying amount	1,289	1,292
Net carrying amount	$ 1,289	$ 1,292