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Segments of Business - Schedule Of Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2015
Revenues |  |  |  |  |  |  |  |  |  |  |
Total Revenues | $ 48,713 | $ 50,130 | $ 49,957 | $ 49,733 | $ 46,678 | $ 47,899 | $ 48,761 | $ 47,546 | $ 198,533 | $ 190,884 | $ 179,045
Operating profit |  |  |  |  |  |  |  |  |  |  |
Operating income |  |  |  |  |  |  |  |  | 7,109 | 3,545 | 2,968
Interest Expense |  |  |  |  |  |  |  |  | (308) | (353) | (374)
Income from Continuing Operations Before Income Taxes |  |  |  |  |  |  |  |  | 6,891 | 3,250 | 2,657
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 910 | 885 | 1,017
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 404 | 488 | 376
United States |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  | 164,428 | 158,255 | 142,810
Foreign |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  | 34,105 | 32,629 | 36,235
Operating Segments |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  | 198,533 | 190,884 | 179,045
Operating profit |  |  |  |  |  |  |  |  |  |  |
Operating income |  |  |  |  |  |  |  |  | 7,576 | 4,072 | 3,485
Operating Segments | Distribution Solutions |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  | 195,923 | 187,999 | 175,976
Operating profit |  |  |  |  |  |  |  |  |  |  |
Operating income |  |  |  |  |  |  |  |  | 3,361 | 3,553 | 3,047
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 735 | 669 | 750
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 276 | 306 | 301
Operating Segments | Distribution Solutions | Reportable Subsegments | North America pharmaceutical distribution and services |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  | 164,832 | 158,469 | 143,711
Operating Segments | Distribution Solutions | Reportable Subsegments | International pharmaceutical distribution and services |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  | 24,847 | 23,497 | 26,358
Operating Segments | Distribution Solutions | Reportable Subsegments | Medical-Surgical distribution and services |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  | 6,244 | 6,033 | 5,907
Operating Segments | Technology Solutions |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Total Revenues |  |  |  |  |  |  |  |  | 2,610 | 2,885 | 3,069
Operating profit |  |  |  |  |  |  |  |  |  |  |
Operating income |  |  |  |  |  |  |  |  | 4,215 | 519 | 438
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 65 | 107 | 156
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 30 | 15 | 27
Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |
Operating profit |  |  |  |  |  |  |  |  |  |  |
Corporate Expenses, Net |  |  |  |  |  |  |  |  | (377) | (469) | (454)
Corporate |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | 110 | 109 | 111
Expenditures for long-lived assets |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  |  |  |  |  | $ 98 | $ 167 | $ 48

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