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Restructuring, Impairment, and Related Charges - Summary of Activity Related to Restructuring Liability (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020
Cost Alignment Plan |  |  |
Beginning balance | $ 151 | $ 157 |
Restructuring, impairment, and related charges, net | 245 | 219 | $ 156
Non-cash charges | (139) | (56) |
Cash payments | (87) | (159) |
Other | (40) | (10) |
Ending balance | 130 | 151 | 157
Operating Segments | U.S. Pharmaceutical |  |  |
Cost Alignment Plan |  |  |
Beginning balance | 19 | 29 |
Restructuring, impairment, and related charges, net | 35 | 21 | 23
Non-cash charges | (18) | 0 |
Cash payments | (18) | (31) |
Other | (7) | 0 |
Ending balance | 11 | 19 | 29
Operating Segments | Prescription Technology Solutions |  |  |
Cost Alignment Plan |  |  |
Beginning balance | 4 | 1 |
Restructuring, impairment, and related charges, net | 25 | 4 | (1)
Non-cash charges | (20) | 0 |
Cash payments | (6) | (1) |
Other | 0 | 0 |
Ending balance | 3 | 4 | 1
Operating Segments | Medical-Surgical Solutions |  |  |
Cost Alignment Plan |  |  |
Beginning balance | 3 | 22 |
Restructuring, impairment, and related charges, net | 9 | 4 | 24
Non-cash charges | (5) | (1) |
Cash payments | (6) | (21) |
Other | 0 | (1) |
Ending balance | 1 | 3 | 22
Operating Segments | International |  |  |
Cost Alignment Plan |  |  |
Beginning balance | 66 | 66 |
Restructuring, impairment, and related charges, net | 76 | 85 | 21
Non-cash charges | (35) | (46) |
Cash payments | (28) | (31) |
Other | (23) | (8) |
Ending balance | 56 | 66 | 66
Corporate |  |  |
Cost Alignment Plan |  |  |
Beginning balance | 59 | 39 |
Restructuring, impairment, and related charges, net | 100 | 105 | 89
Non-cash charges | (61) | (9) |
Cash payments | (29) | (75) |
Other | (10) | (1) |
Ending balance | 59 | 59 | $ 39
Other Accrued Liabilities |  |  |
Cost Alignment Plan |  |  |
Beginning balance | 99 |  |
Ending balance | 58 | 99 |
Other noncurrent liabilities |  |  |
Cost Alignment Plan |  |  |
Beginning balance | 52 |  |
Ending balance | 36 | $ 52 |
Disposal Group, Including Discontinued Operation, Liabilities, Current |  |  |
Cost Alignment Plan |  |  |
Ending balance | $ 36 |  |

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