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Working capital - Narrative (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Jun. 30, 2023
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Summary of additional information about working capital [line items] |  |
Trade receivables | $ 2,674 | $ 2,534
Interest on borrowings | 291 | 274
Accrued Discounts Related To Sales Recognized | (764) | (707)
Current contract liabilities | 92 | 109
Supply chain financing facilities accounted as trade payables | 847 | 916
Provision for employee deferred compensation plan | $ 54 | 64
United States |  |
Summary of additional information about working capital [line items] |  |
Trade receivables due from counterparties | 21.00% |
India |  |
Summary of additional information about working capital [line items] |  |
Trade receivables due from counterparties | 16.00% |
United Kingdom |  |
Summary of additional information about working capital [line items] |  |
Trade receivables due from counterparties | 9.00% |
Non-current liabilities | Fair value |  |
Summary of additional information about working capital [line items] |  |
Non-current contingent liabilities | $ (231) | $ (369)

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