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Financial risk management and derivative financial instruments - Summary of Undiscounted Contractual Cash Flows of Financial Liabilities (Detail) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | $ 241 | $ 254
Commercial paper |  | 819
Lease liabilities | 3,442 | 3,505
Currency swaps hedging EUR500m 1.625% bonds 2024 outflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | 660 | 684
Currency swaps hedging EUR500m 1.625% bonds 2024 Inflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | (593) | (654)
Currency swaps hedging EUR500m 2.125% bonds 2027 outflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | 702 | 732
Currency swaps hedging EUR500m 2.125% bonds 2027 inflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | (638) | (705)
Deferred and contingent purchase consideration [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 94 | 112
Bank Overdrafts [member] |  |
Non-derivative financial liabilities: |  |
Borrowings | 59 | 51
GBP300m 3.75% bonds 2025 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 465 | 486
GBP350m 2.125% bonds 2026 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 522 | 539
EUR500m 2.125% bonds 2027 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 638 | 705
Trade Payables [Member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 555 | 420
Eur500m 1.625% bonds 2024 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 593 | 654
GBP400m 3.375% bonds 2028 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 666 | 693
Due within one year [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 241 | 9
Commercial paper |  | 819
Lease liabilities | 58 | 57
Due within one year [member] | Currency swaps hedging EUR500m 1.625% bonds 2024 outflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | 16 | 16
Due within one year [member] | Currency swaps hedging EUR500m 1.625% bonds 2024 Inflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | (9) | (10)
Due within one year [member] | Currency swaps hedging EUR500m 2.125% bonds 2027 outflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | 21 | 21
Due within one year [member] | Currency swaps hedging EUR500m 2.125% bonds 2027 inflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | (12) | (13)
Due within one year [member] | Deferred and contingent purchase consideration [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities |  | 13
Due within one year [member] | Bank Overdrafts [member] |  |
Non-derivative financial liabilities: |  |
Borrowings | 59 | 51
Due within one year [member] | GBP300m 3.75% bonds 2025 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 15 | 15
Due within one year [member] | GBP350m 2.125% bonds 2026 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 10 | 10
Due within one year [member] | EUR500m 2.125% bonds 2027 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 12 | 13
Due within one year [member] | Trade Payables [Member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 550 | 416
Due within one year [member] | Eur500m 1.625% bonds 2024 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 9 | 10
Due within one year [member] | GBP400m 3.375% bonds 2028 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 18 | 19
Between 1 and 2 years [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities |  | 245
Lease liabilities | 49 | 55
Between 1 and 2 years [member] | Currency swaps hedging EUR500m 1.625% bonds 2024 outflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | 16 | 16
Between 1 and 2 years [member] | Currency swaps hedging EUR500m 1.625% bonds 2024 Inflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | (9) | (10)
Between 1 and 2 years [member] | Currency swaps hedging EUR500m 2.125% bonds 2027 outflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | 21 | 21
Between 1 and 2 years [member] | Currency swaps hedging EUR500m 2.125% bonds 2027 inflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | (12) | (13)
Between 1 and 2 years [member] | Deferred and contingent purchase consideration [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities |  | 5
Between 1 and 2 years [member] | GBP300m 3.75% bonds 2025 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 15 | 15
Between 1 and 2 years [member] | GBP350m 2.125% bonds 2026 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 10 | 10
Between 1 and 2 years [member] | EUR500m 2.125% bonds 2027 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 12 | 13
Between 1 and 2 years [member] | Trade Payables [Member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 2 | 2
Between 1 and 2 years [member] | Eur500m 1.625% bonds 2024 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 9 | 10
Between 1 and 2 years [member] | GBP400m 3.375% bonds 2028 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 18 | 18
After two but before five years [member] |  |
Non-derivative financial liabilities: |  |
Lease liabilities | 123 | 136
After two but before five years [member] | Currency swaps hedging EUR500m 1.625% bonds 2024 outflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | 628 | 652
After two but before five years [member] | Currency swaps hedging EUR500m 1.625% bonds 2024 Inflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | (575) | (634)
After two but before five years [member] | Currency swaps hedging EUR500m 2.125% bonds 2027 outflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | 62 | 63
After two but before five years [member] | Currency swaps hedging EUR500m 2.125% bonds 2027 inflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | (36) | (39)
After two but before five years [member] | Deferred and contingent purchase consideration [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 52 | 13
After two but before five years [member] | GBP300m 3.75% bonds 2025 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 435 | 456
After two but before five years [member] | GBP350m 2.125% bonds 2026 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 502 | 31
After two but before five years [member] | EUR500m 2.125% bonds 2027 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 36 | 39
After two but before five years [member] | Trade Payables [Member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 1 | 1
After two but before five years [member] | Eur500m 1.625% bonds 2024 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 575 | 634
After two but before five years [member] | GBP400m 3.375% bonds 2028 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 55 | 55
More than 5 years [member] |  |
Non-derivative financial liabilities: |  |
Lease liabilities | 3,212 | 3,257
More than 5 years [member] | Currency swaps hedging EUR500m 2.125% bonds 2027 outflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | 598 | 627
More than 5 years [member] | Currency swaps hedging EUR500m 2.125% bonds 2027 inflows [member] |  |
Derivative financial liabilities: |  |
Currency swaps hedging | (578) | (640)
More than 5 years [member] | Deferred and contingent purchase consideration [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 42 | 81
More than 5 years [member] | GBP350m 2.125% bonds 2026 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 0 | 488
More than 5 years [member] | EUR500m 2.125% bonds 2027 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 578 | 640
More than 5 years [member] | Trade Payables [Member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | 2 | 1
More than 5 years [member] | GBP400m 3.375% bonds 2028 [member] |  |
Non-derivative financial liabilities: |  |
Non-derivative financial liabilities | $ 575 | $ 601

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