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Segments of Business - Schedule of Segment Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020
Segment revenues |  |  |
Revenues | $ 263,966 | $ 238,228 | $ 231,051
Segment operating profit (loss) |  |  |
Operating income | 3,370 | 3,828 | 2,366
Corporate expenses, net | (1,073) | (8,645) | (973)
Loss on debt extinguishment | (191) | 0 | 0
Interest expense | (178) | (217) | (249)
Income (loss) from continuing operations before income taxes | 1,928 | (5,034) | 1,144
Segment depreciation and amortization |  |  |
Total depreciation and amortization | 760 | 887 | 922
Segment expenditures for long-lived assets |  |  |
Total expenditures for long-lived assets | 535 | 641 | 506
Corporate |  |  |
Segment operating profit (loss) |  |  |
Operating income | 0 | 0 | (1,113)
Segment depreciation and amortization |  |  |
Total depreciation and amortization | 117 | 125 | 136
Segment expenditures for long-lived assets |  |  |
Total expenditures for long-lived assets | 137 | 104 | 120
U.S. Pharmaceutical |  |  |
Segment revenues |  |  |
Revenues | 212,149 | 189,274 | 181,700
U.S. Pharmaceutical | Operating Segments |  |  |
Segment operating profit (loss) |  |  |
Operating income | 2,879 | 2,763 | 2,745
Segment depreciation and amortization |  |  |
Total depreciation and amortization | 228 | 211 | 208
Segment expenditures for long-lived assets |  |  |
Total expenditures for long-lived assets | 137 | 246 | 109
Prescription Technology Solutions |  |  |
Segment revenues |  |  |
Revenues | 3,864 | 2,890 | 2,705
Prescription Technology Solutions | Operating Segments |  |  |
Segment operating profit (loss) |  |  |
Operating income | 500 | 395 | 396
Segment depreciation and amortization |  |  |
Total depreciation and amortization | 82 | 87 | 85
Segment expenditures for long-lived assets |  |  |
Total expenditures for long-lived assets | 10 | 22 | 23
Medical-Surgical Solutions |  |  |
Segment revenues |  |  |
Revenues | 11,608 | 10,099 | 8,305
Medical-Surgical Solutions | Operating Segments |  |  |
Segment operating profit (loss) |  |  |
Operating income | 959 | 707 | 499
Segment depreciation and amortization |  |  |
Total depreciation and amortization | 129 | 130 | 136
Segment expenditures for long-lived assets |  |  |
Total expenditures for long-lived assets | 74 | 57 | 36
International |  |  |
Segment revenues |  |  |
Revenues | 36,345 | 35,965 | 38,341
International | Operating Segments |  |  |
Segment operating profit (loss) |  |  |
Operating income | (968) | (37) | (161)
Segment depreciation and amortization |  |  |
Total depreciation and amortization | 204 | 334 | 357
Segment expenditures for long-lived assets |  |  |
Total expenditures for long-lived assets | $ 177 | $ 212 | $ 218

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