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Segments of Business (Details) numberOfProducts in Thousands, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) numberOfSegments country numberOfProducts | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) country numberOfProducts | Sep. 30, 2019 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |
Number of reportable segments | numberOfSegments | 4 |  |  |  |
Segment revenues |  |  |  |  |
Total revenues | $ 60,808 | $ 57,616 |  | $ 116,487 | $ 113,344
Segment operating profit (loss) |  |  |  |  |
Total operating profit (loss) | 634 | 626 |  | 1,312 | 1,260
Corporate income (expenses), net | (148) | (350) |  | (216) | (511)
Interest expense | (50) | (64) |  | (110) | (120)
Income (loss) from continuing operations before income taxes | 655 | (970) |  | 1,300 | (351)
Pre-tax credits related to LIFO accounting |  |  |  | 104 | 48
Restructuring, impairment, and related charges | 60 | 45 |  | 116 | 68
Goodwill impairment charge | 69 | 0 |  | 69 | 0
Proportionate loss from investment in Change Healthcare | 0 | 1,454 |  | 0 | 1,450
Joint Venture |  |  |  |  |
Segment operating profit (loss) |  |  |  |  |
Pre-tax dilution loss |  | 246 |  |  | 246
Joint Venture | Change Healthcare JV |  |  |  |  |
Segment operating profit (loss) |  |  |  |  |
Impairment |  | 1,200 |  |  | 1,200
Proportionate loss from investment in Change Healthcare |  | 51 |  |  | 47
United States | Pension Plan |  |  |  |  |
Segment operating profit (loss) |  |  |  |  |
Pre-tax settlement expense |  | 105 | $ 17 |  | 122
In re: National Prescription Opioid Litigation |  |  |  |  |
Segment operating profit (loss) |  |  |  |  |
Corporate income (expenses), net |  |  |  | 131 |
Charge in connection with State of New York's Opioid Stewardship Act | 50 |  |  | 50 |
Opioid-related settlement charges |  | 82 |  |  | 82
Pre-tax litigation expense | $ 41 | 36 |  | 84 | 72
United States |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Number of reportable segments | numberOfSegments | 3 |  |  |  |
Operating Segments |  |  |  |  |
Segment operating profit (loss) |  |  |  |  |
Total operating profit (loss) | $ 853 | (556) |  | 1,626 | 280
Corporate |  |  |  |  |
Segment operating profit (loss) |  |  |  |  |
Total operating profit (loss) | 0 | (1,454) |  | 0 | (1,450)
Restructuring, impairment, and related charges | 12 | 27 |  | 40 | 44
U.S. Pharmaceutical |  |  |  |  |
Segment operating profit (loss) |  |  |  |  |
Pre-tax credits related to LIFO accounting | 52 | 33 |  | 104 | 48
Goodwill impairment charge |  |  |  | 0 |
U.S. Pharmaceutical | Operating Segments |  |  |  |  |
Segment revenues |  |  |  |  |
Total revenues | 48,067 | 45,613 |  | 92,737 | 89,402
Segment operating profit (loss) |  |  |  |  |
Total operating profit (loss) | 623 | 641 |  | $ 1,236 | $ 1,217
Revenue derived from services, percentage (less than) |  |  |  | 1.00% | 1.00%
Restructuring, impairment, and related charges | 10 | 3 |  | $ 12 | $ 2
International |  |  |  |  |
Segment operating profit (loss) |  |  |  |  |
Goodwill impairment charge | 69 |  |  | 69 |
After-tax goodwill impairment | 69 |  |  | 69 |
International | Strategic Growth Initiative Plan |  |  |  |  |
Segment operating profit (loss) |  |  |  |  |
Restructuring, impairment, and related charges | $ 27 |  |  | $ 41 |
International | Europe |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Number of countries in which entity segment operates | country | 13 |  |  | 13 |
International | Operating Segments |  |  |  |  |
Segment revenues |  |  |  |  |
Total revenues | $ 9,540 | 9,321 |  | $ 18,092 | 18,728
Segment operating profit (loss) |  |  |  |  |
Total operating profit (loss) | (45) | 30 |  | $ (42) | $ 61
Revenue derived from services, percentage (less than) |  |  |  | 6.00% | 6.00%
Restructuring, impairment, and related charges | $ 35 | 12 |  | $ 58 | $ 16
Medical-Surgical Solutions |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Number of national brand medical-surgical products offered (more than) | numberOfProducts | 275 |  |  | 275 |
Segment operating profit (loss) |  |  |  |  |
Goodwill impairment charge |  |  |  | $ 0 |
Medical-Surgical Solutions | Operating Segments |  |  |  |  |
Segment revenues |  |  |  |  |
Total revenues | $ 2,533 | 2,056 |  | 4,334 | 3,959
Segment operating profit (loss) |  |  |  |  |
Total operating profit (loss) | 187 | 129 |  | $ 276 | $ 254
Revenue derived from services, percentage (less than) |  |  |  | 2.00% | 2.00%
Restructuring, impairment, and related charges | 3 | 3 |  | $ 6 | $ 6
Prescription Technology Solutions | Operating Segments |  |  |  |  |
Segment revenues |  |  |  |  |
Total revenues | 668 | 626 |  | 1,324 | 1,255
Segment operating profit (loss) |  |  |  |  |
Total operating profit (loss) | 88 | 98 |  | $ 156 | $ 198
Revenue derived from services, percentage (less than) |  |  |  | 40.00% | 40.00%
Restructuring, impairment, and related charges | $ 0 | $ 0 |  | $ 0 | $ 0

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