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Segment Information (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Segment Information

Segment information as of and for the year ended December 31, 2018, follows ($ in millions):

	Managed Care				Specialty Services				Eliminations				Consolidated Total
Total revenues from external customers	$	56,999			$	3,117			$	—			$	60,116
Total revenues internal customers	100				9,389				(9,489		)		—
Total revenues	$	57,099			$	12,506			(9,489		)		$	60,116
Earnings from operations	$	1,310			$	148			—				$	1,458
Total assets	$	27,627			$	3,274			—				$	30,901

Segment information as of and for the year ended December 31, 2017, follows ($ in millions):

	Managed Care				Specialty Services				Eliminations				Consolidated Total
Total revenues from external customers	$	45,798			$	2,584			$	—			$	48,382
Total revenues internal customers	44				9,471				(9,515		)		—
Total revenues	$	45,842			$	12,055			$	(9,515	)		$	48,382
Earnings from operations	$	917			$	282			$	—			$	1,199
Total assets	$	19,959			$	1,896			$	—			$	21,855

Segment information as of and for the year ended December 31, 2016, follows ($ in millions):

	Managed Care				Specialty Services				Eliminations				Consolidated Total
Total revenues from external customers	$	38,182			$	2,425			$	—			$	40,607
Total revenues internal customers	200				5,952				(6,152		)		—
Total revenues	$	38,382			$	8,377			$	(6,152	)		$	40,607
Earnings from operations	$	1,080			$	183			$	—			$	1,263
Total assets	$	18,423			$	1,774			$	—			$	20,197

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- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599

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- References

No definition available.

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