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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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- Definition

Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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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

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill - Changes in Goodwill by Reporting Segment (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018	Mar. 22, 2019	Dec. 31, 2016
Goodwill
Goodwill			$ 1,800	$ 3,410
Accumulated impairment losses				(965)
Goodwill Roll Forward
Net carrying value, beginning of period:	$ 2,478	$ 2,445
Acquisition activity	1,815	33
Sale of Business	3
Net carrying value, end of period:	4,290	2,478
Commercial Banking
Goodwill
Goodwill				1,363
Accumulated impairment losses				(750)
Goodwill Roll Forward
Net carrying value, beginning of period:	630	613
Acquisition activity	1,352	17
Sale of Business	0
Net carrying value, end of period:	1,982	630
Branch Banking
Goodwill
Goodwill				1,655
Accumulated impairment losses				0
Goodwill Roll Forward
Net carrying value, beginning of period:	1,655	1,655
Acquisition activity	399	0
Sale of Business	0
Net carrying value, end of period:	2,054	1,655
Consumer Lending
Goodwill
Goodwill				215
Accumulated impairment losses				(215)
Goodwill Roll Forward
Net carrying value, beginning of period:	0	0
Acquisition activity	0	0
Sale of Business	0
Net carrying value, end of period:	0	0
Wealth and Asset Management
Goodwill
Goodwill				177
Accumulated impairment losses				0
Goodwill Roll Forward
Net carrying value, beginning of period:	193	177
Acquisition activity	64	16
Sale of Business	3
Net carrying value, end of period:	254	193
General Corporate and Other
Goodwill
Goodwill				0
Accumulated impairment losses				$ 0
Goodwill Roll Forward
Net carrying value, beginning of period:	0	0
Acquisition activity	0	0
Sale of Business	0
Net carrying value, end of period:	$ 0	$ 0