Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax

No definition available.

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Transaction-related costs primarily consisting of fees for legal, advisory and other professional services, amortization of Bridge Facility fees in 2018, as well as employee costs.

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After-tax transaction-related costs including the impact of tax benefits realized from termination of merger agreement. Transaction-related costs consist primarily of fees for legal, advisory and other professional services as well as employee costs.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.

+ References

No definition available.

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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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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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.

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No definition available.

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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.

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- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Mergers, Acquisitions and Divestitures - Narrative (Details) - USD ($) $ in Millions			3 Months Ended		9 Months Ended
	Apr. 19, 2021	Dec. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Business Acquisition [Line Items]
Goodwill		$ 44,648	$ 46,056		$ 46,056
Acquired intangible assets		35,179	34,615		34,615
Integration and transaction-related costs, pre-tax			13	$ 112	58	$ 339
Integration and transaction-related costs, after-tax			$ (35)	$ 83	$ 1	$ 256
U.S Group Disability and Life Insurance \| Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash proceeds from sale of business		6,200
Gain (loss) on sale of business, pre-tax		4,200
Gain (loss) on sale of business, after-tax		$ 3,200
MDLIVE, Inc.
Business Acquisition [Line Items]
Ownership interest acquired	97.00%
Ownership interest after acquisition	100.00%
Total purchase price	$ 2,027
Goodwill	1,438
MDLIVE, Inc. \| Customer relationships
Business Acquisition [Line Items]
Acquired intangible assets	577
Amortization period					17 years
MDLIVE, Inc. \| Evernorth
Business Acquisition [Line Items]
Goodwill	$ 1,300