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Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jul. 31, 2021
Goodwill [Line Items]
Goodwill impairment	$ 370
Amortization expense	817	$ 770	$ 719
Circle Health
Goodwill [Line Items]
Percentage of voting interests acquired				60.00%
Specialty Services
Goodwill [Line Items]
Goodwill impairment	304
Specialty Services | Federal Services
Goodwill [Line Items]
Goodwill impairment	$ 216

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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

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- Definition

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

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