| Summarized Segment Financial Information [Text Block] |
| | | Three Months Ended | | | | March 31, | | (In millions) | | 2015 | 2014 | | Premiums, Fees and other revenues and Mail order pharmacy revenues | | | | | | | Global Health Care | | $ | 7,371 | $ | 6,546 | | Global Supplemental Benefits | | | 743 | | 690 | | Group Disability and Life | | | 976 | | 915 | | Other Operations | | | 32 | | 30 | | Corporate | | | (4) | | (4) | | Total | | $ | 9,118 | $ | 8,177 | | Shareholders' net income | | | | | | | Adjusted income from operations: | | | | | | | Global Health Care | | $ | 444 | $ | 467 | | Global Supplemental Benefits | | | 69 | | 57 | | Group Disability and Life | | | 51 | | 67 | | Other Operations | | | 20 | | 17 | | Segment results | | | 584 | | 608 | | Corporate | | | (71) | | (75) | | Realized investment gains, net of taxes | | | 48 | | 27 | | Amortization of other acquired intangible assets, net of taxes | | | (28) | | (32) | | Shareholders' net income | | $ | 533 | $ | 528 | | | | | | | |
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