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v3.23.2

Stockholders' Deficit - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | $ (1,490) | $ (1,792)
Other comprehensive income, net of tax | 57 | 636
Other comprehensive income (loss) attributable to McKesson | 57 | 636
Ending balance | (1,240) | (1,472)
Derivatives designated for hedge accounting | Net Investment Hedging | Euro Denominated Notes |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Other comprehensive income (loss), net investment hedge, gain (loss) | 0 | 64
Derivatives designated for hedge accounting | Cross-currency swaps |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Other comprehensive income (loss), net investment hedge, gain (loss) | (20) |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax |  | 12
Total Accumulated Other Comprehensive Loss |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | (905) | (1,534)
Other comprehensive income (loss) before reclassifications | 57 | (101)
Amounts reclassified to earnings and other | 0 | 737
Other comprehensive income, net of tax | 57 | 636
Less: amounts attributable to noncontrolling interests | 0 | 50
Other comprehensive income (loss) attributable to McKesson | 57 | 586
Ending balance | (848) | (948)
Foreign Currency Translation Adjustments, Net of Tax |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | (847) | (1,504)
Other comprehensive income (loss) before reclassifications | 67 | (176)
Amounts reclassified to earnings and other | 0 | 730
Other comprehensive income, net of tax | 67 | 554
Less: amounts attributable to noncontrolling interests | 0 | 47
Other comprehensive income (loss) attributable to McKesson | 67 | 507
Ending balance | (780) | (997)
Unrealized Losses on Net Investment Hedges, Net of Tax |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | (14) | 10
Other comprehensive income (loss) before reclassifications | (15) | 45
Amounts reclassified to earnings and other | 0 | (17)
Other comprehensive income, net of tax | (15) | 28
Less: amounts attributable to noncontrolling interests | 0 | 0
Other comprehensive income (loss) attributable to McKesson | (15) | 28
Ending balance | (29) | 38
Other Comprehensive Income (Loss) before Reclassifications, Tax | 5 | (31)
Unrealized Gains (Losses) on Cash Flow and Other Hedges, Net of Tax |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | (36) | 27
Other comprehensive income (loss) before reclassifications | 7 | 18
Amounts reclassified to earnings and other | 0 | 0
Other comprehensive income, net of tax | 7 | 18
Less: amounts attributable to noncontrolling interests | 0 | 0
Other comprehensive income (loss) attributable to McKesson | 7 | 18
Ending balance | (29) | 45
Unrealized Losses and Other Components of Benefit Plans, Net of Tax |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance | (8) | (67)
Other comprehensive income (loss) before reclassifications | (2) | 12
Amounts reclassified to earnings and other | 0 | 24
Other comprehensive income, net of tax | (2) | 36
Less: amounts attributable to noncontrolling interests | 0 | 3
Other comprehensive income (loss) attributable to McKesson | (2) | 33
Ending balance | $ (10) | $ (34)

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