Segment Information - Summarized Segment Financial Information (Details) - USD ($)
$ in Millions |
3 Months Ended |
9 Months Ended |
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues from customers |
$ 69,515
|
$ 63,609
|
$ 201,721
|
$ 180,776
|
| Net investment income (loss) |
233
|
85
|
707
|
696
|
| TOTAL REVENUES |
69,748
|
63,694
|
202,428
|
181,472
|
| Net investment results from certain equity method investments |
(178)
|
(177)
|
(272)
|
(238)
|
| Special item related to impairment of dividend receivable |
0
|
182
|
0
|
182
|
| Adjusted revenues |
69,570
|
63,699
|
202,156
|
181,416
|
| Pharmacy and other service costs |
55,530
|
47,565
|
157,196
|
133,488
|
| Medical costs and other benefit expenses |
7,842
|
9,527
|
26,089
|
28,482
|
| Interest expense and other |
(347)
|
(376)
|
(1,046)
|
(1,073)
|
| Pre-tax adjusted income (loss) from operations |
2,578
|
2,619
|
7,321
|
7,300
|
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest |
2,295
|
1,192
|
5,964
|
3,260
|
| Pre-tax adjustments to reconcile to adjusted income from operations |
|
|
|
|
| (Income) loss attributable to noncontrolling interests |
(123)
|
(99)
|
(342)
|
(271)
|
| Net realized investment (gains) losses |
(204)
|
744
|
(348)
|
2,567
|
| Amortization of acquired intangible assets |
436
|
436
|
1,280
|
1,279
|
| Special items |
|
|
|
|
| Strategic optimization program costs |
222
|
0
|
566
|
0
|
| Integration and transaction-related costs |
7
|
77
|
297
|
177
|
| (Gain) loss on sale of businesses |
(38)
|
87
|
(79)
|
106
|
| (Benefits) charges associated with litigation matters |
(17)
|
0
|
(17)
|
0
|
| Deferred tax expenses |
0
|
0
|
0
|
0
|
| Impairment of dividend receivable |
0
|
182
|
0
|
182
|
| Pre-tax adjusted income (loss) from operations |
2,578
|
2,619
|
7,321
|
7,300
|
| Depreciation and amortization |
697
|
650
|
2,053
|
2,129
|
| Evernorth Health Services |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues from customers |
59,982
|
51,552
|
169,470
|
144,689
|
| Cigna Healthcare |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues from customers |
9,460
|
11,919
|
31,986
|
35,752
|
| Other Operations |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues from customers |
68
|
137
|
260
|
333
|
| Operating Segments | Evernorth Health Services |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Net investment income (loss) |
29
|
(142)
|
91
|
(18)
|
| TOTAL REVENUES |
60,391
|
52,455
|
171,897
|
148,229
|
| Net investment results from certain equity method investments |
0
|
0
|
0
|
0
|
| Special item related to impairment of dividend receivable |
|
182
|
|
182
|
| Adjusted revenues |
60,391
|
52,637
|
171,897
|
148,411
|
| Pharmacy and other service costs |
57,326
|
49,768
|
163,386
|
140,458
|
| Medical costs and other benefit expenses |
0
|
0
|
0
|
0
|
| Selling, general and administrative expenses |
1,037
|
894
|
3,135
|
2,825
|
| Interest expense and other |
(2)
|
0
|
(1)
|
(2)
|
| Less: Income attributable to noncontrolling interests |
123
|
99
|
342
|
271
|
| Pre-tax adjusted income (loss) from operations |
1,903
|
1,876
|
5,033
|
4,855
|
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest |
1,563
|
631
|
4,101
|
1,494
|
| Pre-tax adjustments to reconcile to adjusted income from operations |
|
|
|
|
| (Income) loss attributable to noncontrolling interests |
(123)
|
(99)
|
(342)
|
(271)
|
| Net realized investment (gains) losses |
17
|
748
|
(67)
|
2,203
|
| Amortization of acquired intangible assets |
431
|
414
|
1,262
|
1,247
|
| Special items |
|
|
|
|
| Strategic optimization program costs |
15
|
|
83
|
|
| Integration and transaction-related costs |
0
|
0
|
0
|
0
|
| (Gain) loss on sale of businesses |
0
|
0
|
(4)
|
0
|
| (Benefits) charges associated with litigation matters |
0
|
|
0
|
|
| Impairment of dividend receivable |
|
182
|
|
182
|
| Pre-tax adjusted income (loss) from operations |
1,903
|
1,876
|
5,033
|
4,855
|
| Depreciation and amortization |
601
|
544
|
1,772
|
1,764
|
| Operating Segments | Cigna Healthcare |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Net investment income (loss) |
116
|
142
|
376
|
463
|
| TOTAL REVENUES |
10,933
|
13,340
|
36,263
|
39,821
|
| Net investment results from certain equity method investments |
(178)
|
(177)
|
(272)
|
(238)
|
| Special item related to impairment of dividend receivable |
|
0
|
|
0
|
| Adjusted revenues |
10,755
|
13,163
|
35,991
|
39,583
|
| Pharmacy and other service costs |
0
|
0
|
0
|
0
|
| Medical costs and other benefit expenses |
7,579
|
9,355
|
25,446
|
27,886
|
| Selling, general and administrative expenses |
2,140
|
2,637
|
7,132
|
7,986
|
| Interest expense and other |
2
|
3
|
6
|
7
|
| Less: Income attributable to noncontrolling interests |
0
|
0
|
0
|
0
|
| Pre-tax adjusted income (loss) from operations |
1,038
|
1,174
|
3,419
|
3,718
|
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest |
1,302
|
1,073
|
3,764
|
3,221
|
| Pre-tax adjustments to reconcile to adjusted income from operations |
|
|
|
|
| (Income) loss attributable to noncontrolling interests |
0
|
0
|
0
|
0
|
| Net realized investment (gains) losses |
(218)
|
(8)
|
(285)
|
359
|
| Amortization of acquired intangible assets |
5
|
22
|
18
|
32
|
| Special items |
|
|
|
|
| Strategic optimization program costs |
4
|
|
14
|
|
| Integration and transaction-related costs |
0
|
0
|
0
|
0
|
| (Gain) loss on sale of businesses |
(38)
|
87
|
(75)
|
106
|
| (Benefits) charges associated with litigation matters |
(17)
|
|
(17)
|
|
| Impairment of dividend receivable |
|
0
|
|
0
|
| Pre-tax adjusted income (loss) from operations |
1,038
|
1,174
|
3,419
|
3,718
|
| Depreciation and amortization |
88
|
97
|
252
|
334
|
| Operating Segments | Other Operations |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Net investment income (loss) |
80
|
79
|
222
|
231
|
| TOTAL REVENUES |
162
|
234
|
521
|
627
|
| Net investment results from certain equity method investments |
0
|
0
|
0
|
0
|
| Special item related to impairment of dividend receivable |
|
0
|
|
0
|
| Adjusted revenues |
162
|
234
|
521
|
627
|
| Pre-tax adjusted income (loss) from operations |
36
|
(6)
|
61
|
(4)
|
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest |
0
|
(10)
|
(40)
|
(9)
|
| Pre-tax adjustments to reconcile to adjusted income from operations |
|
|
|
|
| (Income) loss attributable to noncontrolling interests |
0
|
0
|
0
|
0
|
| Net realized investment (gains) losses |
(5)
|
4
|
2
|
5
|
| Amortization of acquired intangible assets |
0
|
0
|
0
|
0
|
| Special items |
|
|
|
|
| Strategic optimization program costs |
41
|
|
99
|
|
| Integration and transaction-related costs |
0
|
0
|
0
|
0
|
| (Gain) loss on sale of businesses |
0
|
0
|
0
|
0
|
| (Benefits) charges associated with litigation matters |
0
|
|
0
|
|
| Impairment of dividend receivable |
|
0
|
|
0
|
| Pre-tax adjusted income (loss) from operations |
36
|
(6)
|
61
|
(4)
|
| Depreciation and amortization |
2
|
4
|
13
|
7
|
| Corporate and Eliminations |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| TOTAL REVENUES |
(1,738)
|
(2,335)
|
(6,253)
|
(7,205)
|
| Special item related to impairment of dividend receivable |
|
0
|
|
0
|
| Adjusted revenues |
(1,738)
|
(2,335)
|
(6,253)
|
(7,205)
|
| Special items |
|
|
|
|
| Impairment of dividend receivable |
|
0
|
|
0
|
| Depreciation and amortization |
6
|
5
|
16
|
24
|
| Corporate |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues from customers |
5
|
1
|
5
|
2
|
| Net investment income (loss) |
8
|
6
|
18
|
20
|
| Net investment results from certain equity method investments |
0
|
0
|
0
|
0
|
| Special item related to impairment of dividend receivable |
|
0
|
|
0
|
| Pre-tax adjusted income (loss) from operations |
(399)
|
(425)
|
(1,192)
|
(1,269)
|
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest |
(570)
|
(502)
|
(1,861)
|
(1,446)
|
| Pre-tax adjustments to reconcile to adjusted income from operations |
|
|
|
|
| (Income) loss attributable to noncontrolling interests |
0
|
0
|
0
|
0
|
| Net realized investment (gains) losses |
2
|
0
|
2
|
0
|
| Amortization of acquired intangible assets |
0
|
0
|
0
|
0
|
| Special items |
|
|
|
|
| Strategic optimization program costs |
162
|
|
370
|
|
| Integration and transaction-related costs |
7
|
77
|
297
|
177
|
| (Gain) loss on sale of businesses |
0
|
0
|
0
|
0
|
| (Benefits) charges associated with litigation matters |
0
|
|
0
|
|
| Impairment of dividend receivable |
|
0
|
|
0
|
| Pre-tax adjusted income (loss) from operations |
(399)
|
(425)
|
(1,192)
|
(1,269)
|
| Intersegment Eliminations |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues from customers |
(1,751)
|
(2,342)
|
(6,276)
|
(7,227)
|
| Intersegment Eliminations | Evernorth Health Services |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues from customers |
(380)
|
(1,045)
|
(2,336)
|
(3,558)
|
| Intersegment Eliminations | Cigna Healthcare |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues from customers |
(1,357)
|
(1,279)
|
(3,901)
|
(3,606)
|
| Intersegment Eliminations | Other Operations |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues from customers |
$ (14)
|
$ (18)
|
$ (39)
|
$ (63)
|