Merger Termination Fee And Related Costs, Net

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- Definition

Restructuring Charges, Per Diluted Share

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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.

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No definition available.

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- Definition

The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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- Definition

The number of positions eliminated during the period as a result of restructuring activities.

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- Definition

The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s).

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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BASIS OF PRESENTATION AND SIGNIFICANT EVENTS - Workforce Optimization, Aetna Merger, and Revenue Recognition (Details) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended		12 Months Ended
	Feb. 16, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) employee $ / shares
Business Acquisition [Line Items]
Number of associates impacted \| employee						3,600
Percentage of workforce associated impacted						7.80%
Restructuring charges						$ 148
Restructuring charges per diluted share (in dollars per share) \| $ / shares						$ 0.64
Restructuring liability, current		$ 52		$ 52		$ 140
Break up fee received	$ 1,000	0	$ 0	0	$ (947)
Accounts receivable		1,471		1,471		$ 854
Services Accounts Receivable
Business Acquisition [Line Items]
Accounts receivable		$ 152		$ 152