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Consolidated net (debt)/cash - Analysis of changes in consolidated net (debt)/cash (Detail) $ in Millions | 6 Months Ended
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Jun. 30, 2021 USD ($)
Disclosure of financial liabilities [Abstract] |
Net debt at beginning balance | $ (664)
Foreign exchange adjustment | (18)
Cash movements excluding exchange movements, net debt | 3,937
Other non-cash movements | (115)
Net debt at ending balance | 3,140
Borrowings Excluding Overdraft |
Disclosure of financial liabilities [Abstract] |
Financial liabilities, beginning balance | (12,653)
Foreign exchange adjustment | 5
Cash movements excluding exchange movements | 120
Other non-cash movements | 125
Financial liabilities, ending balance | (12,403)
Lease liabilities |
Disclosure of financial liabilities [Abstract] |
Financial liabilities, beginning balance | (1,178)
Foreign exchange adjustment | 1
Cash movements excluding exchange movements | 170
Other non-cash movements | (94)
Financial liabilities, ending balance | (1,101)
Debt-related derivatives (included in other financial liabilities/assets |
Disclosure of financial liabilities [Abstract] |
Financial liabilities, beginning balance | 248
Foreign exchange adjustment | (3)
Cash movements excluding exchange movements | (1)
Other non-cash movements | (133)
Financial liabilities, ending balance | 111
Cash and cash equivalents |
Disclosure of financial liabilities [Abstract] |
Cash and cash equivalents and other investments, beginning balance | 10,381
Foreign exchange adjustment | (21)
Cash movements excluding exchange movements | 3,663
Other non-cash movements | 0
Cash and cash equivalents and other investments, ending balance | 14,023
Other Investments |
Disclosure of financial liabilities [Abstract] |
Cash and cash equivalents and other investments, beginning balance | 2,538
Foreign exchange adjustment | 0
Cash movements excluding exchange movements | (15)
Other non-cash movements | (13)
Cash and cash equivalents and other investments, ending balance | $ 2,510

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