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Insurance and reinsurance contracts - Additional analysis of insurance and reinsurance contract balances by segment (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Insurance    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan $ 138,691 $ 125,133
Insurance service result (2,595) (2,258)
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 295 233
Other net finance (income) expense 3,859 8,606
Total net finance (income) expense from insurance and reinsurance contracts 4,154 8,839
Total amount recognised in income statement 1,559 6,581
Effect of movements in exchange rates (1,763) 210
Total amount recognised in comprehensive income (204) 6,791
Cash flows    
Total cash flows 8,058 6,942
Other changes (293) (175)
Net closing (assets) liabilities at 31 Dec 146,252 138,691
Insurance | Including JVs and associates    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 160,626 144,203
Insurance service result (2,786) (2,424)
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 649 517
Other net finance (income) expense 5,402 10,347
Total net finance (income) expense from insurance and reinsurance contracts 6,051 10,864
Total amount recognised in income statement 3,265 8,440
Effect of movements in exchange rates (2,395) (114)
Total amount recognised in comprehensive income 870 8,326
Cash flows    
Total cash flows 8,070 8,278
Other changes (294) (181)
Net closing (assets) liabilities at 31 Dec 169,272 160,626
Insurance | Including JVs and associates | Mainland China    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 14,833 12,837
Insurance service result (104) (98)
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 286 227
Other net finance (income) expense 811 692
Total net finance (income) expense from insurance and reinsurance contracts 1,097 919
Total amount recognised in income statement 993 821
Effect of movements in exchange rates (439) (259)
Total amount recognised in comprehensive income 554 562
Cash flows    
Total cash flows 298 1,434
Net closing (assets) liabilities at 31 Dec 15,685 14,833
Insurance | Including JVs and associates | Hong Kong    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 70,073 62,686
Insurance service result (971) (755)
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 2 (1)
Other net finance (income) expense (1,792) 3,646
Total net finance (income) expense from insurance and reinsurance contracts (1,790) 3,645
Total amount recognised in income statement (2,761) 2,890
Effect of movements in exchange rates 376 (11)
Total amount recognised in comprehensive income (2,385) 2,879
Cash flows    
Total cash flows 4,907 4,509
Other changes (1) (1)
Net closing (assets) liabilities at 31 Dec 72,594 70,073
Insurance | Including JVs and associates | Indonesia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 3,142 3,277
Insurance service result (213) (146)
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 48 43
Other net finance (income) expense 54 145
Total net finance (income) expense from insurance and reinsurance contracts 102 188
Total amount recognised in income statement (111) 42
Effect of movements in exchange rates (134) 46
Total amount recognised in comprehensive income (245) 88
Cash flows    
Total cash flows (245) (186)
Other changes (2) (37)
Net closing (assets) liabilities at 31 Dec 2,650 3,142
Insurance | Including JVs and associates | Malaysia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 8,394 8,027
Insurance service result (290) (254)
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 94 100
Other net finance (income) expense 857 498
Total net finance (income) expense from insurance and reinsurance contracts 951 598
Total amount recognised in income statement 661 344
Effect of movements in exchange rates 252 (336)
Total amount recognised in comprehensive income 913 8
Cash flows    
Total cash flows 279 364
Other changes (1) (5)
Net closing (assets) liabilities at 31 Dec 9,585 8,394
Insurance | Including JVs and associates | Singapore    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 37,419 33,903
Insurance service result (683) (598)
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 7 6
Other net finance (income) expense 3,672 2,657
Total net finance (income) expense from insurance and reinsurance contracts 3,679 2,663
Total amount recognised in income statement 2,996 2,065
Effect of movements in exchange rates (1,321) 621
Total amount recognised in comprehensive income 1,675 2,686
Cash flows    
Total cash flows 1,170 884
Other changes (54) (54)
Net closing (assets) liabilities at 31 Dec 40,210 37,419
Insurance | Including JVs and associates | Growth markets and other    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 26,765 23,473
Insurance service result (525) (573)
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 212 142
Other net finance (income) expense 1,800 2,709
Total net finance (income) expense from insurance and reinsurance contracts 2,012 2,851
Total amount recognised in income statement 1,487 2,278
Effect of movements in exchange rates (1,129) (175)
Total amount recognised in comprehensive income 358 2,103
Cash flows    
Total cash flows 1,661 1,273
Other changes (236) (84)
Net closing (assets) liabilities at 31 Dec 28,548 26,765
Insurance | Best estimate liabilities (BEL)    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 116,163 104,042
Insurance service result (2,974) (3,478)
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (24) (43)
Other net finance (income) expense 3,849 8,650
Total net finance (income) expense from insurance and reinsurance contracts 3,825 8,607
Total amount recognised in income statement 851 5,129
Effect of movements in exchange rates (1,423) 225
Total amount recognised in comprehensive income (572) 5,354
Cash flows    
Total cash flows 8,058 6,942
Other changes (273) (175)
Net closing (assets) liabilities at 31 Dec 123,376 116,163
Insurance | Best estimate liabilities (BEL) | Including JVs and associates    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 135,675 120,735
Insurance service result (3,010) (3,645)
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 243 158
Other net finance (income) expense 5,367 10,379
Total net finance (income) expense from insurance and reinsurance contracts 5,610 10,537
Total amount recognised in income statement 2,600 6,892
Effect of movements in exchange rates (2,003) (49)
Total amount recognised in comprehensive income 597 6,843
Cash flows    
Total cash flows 8,070 8,278
Other changes (274) (181)
Net closing (assets) liabilities at 31 Dec 144,068 135,675
Insurance | Best estimate liabilities (BEL) | Including JVs and associates | Mainland China    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 13,029  
Cash flows    
Net closing (assets) liabilities at 31 Dec 14,033 13,029
Insurance | Best estimate liabilities (BEL) | Including JVs and associates | Hong Kong    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 60,761  
Cash flows    
Net closing (assets) liabilities at 31 Dec 63,056 60,761
Insurance | Best estimate liabilities (BEL) | Including JVs and associates | Indonesia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 2,197  
Cash flows    
Net closing (assets) liabilities at 31 Dec 1,839 2,197
Insurance | Best estimate liabilities (BEL) | Including JVs and associates | Malaysia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 5,910  
Cash flows    
Net closing (assets) liabilities at 31 Dec 7,032 5,910
Insurance | Best estimate liabilities (BEL) | Including JVs and associates | Singapore    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 31,770  
Cash flows    
Net closing (assets) liabilities at 31 Dec 34,235 31,770
Insurance | Best estimate liabilities (BEL) | Including JVs and associates | Growth markets and other    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 22,008  
Cash flows    
Net closing (assets) liabilities at 31 Dec 23,873 22,008
Insurance | Risk adjustment for non-financial risk (RA)    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 2,344 1,923
Insurance service result 111 402
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 49 47
Other net finance (income) expense 3 (32)
Total net finance (income) expense from insurance and reinsurance contracts 52 15
Total amount recognised in income statement 163 417
Effect of movements in exchange rates (41) 4
Total amount recognised in comprehensive income 122 421
Cash flows    
Other changes (20)  
Net closing (assets) liabilities at 31 Dec 2,446 2,344
Insurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 2,599 2,164
Insurance service result 124 405
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 56 52
Other net finance (income) expense 28 (20)
Total net finance (income) expense from insurance and reinsurance contracts 84 32
Total amount recognised in income statement 208 437
Effect of movements in exchange rates (44) (2)
Total amount recognised in comprehensive income 164 435
Cash flows    
Other changes (20)  
Net closing (assets) liabilities at 31 Dec 2,743 2,599
Insurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Mainland China    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 152  
Cash flows    
Net closing (assets) liabilities at 31 Dec 168 152
Insurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Hong Kong    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 776  
Cash flows    
Net closing (assets) liabilities at 31 Dec 698 776
Insurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Indonesia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 206  
Cash flows    
Net closing (assets) liabilities at 31 Dec 189 206
Insurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Malaysia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 357  
Cash flows    
Net closing (assets) liabilities at 31 Dec 418 357
Insurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Singapore    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 687  
Cash flows    
Net closing (assets) liabilities at 31 Dec 815 687
Insurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Growth markets and other    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 421  
Cash flows    
Net closing (assets) liabilities at 31 Dec 455 421
Insurance | Contractual service margin (CSM)    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 20,184 19,168
Insurance service result 268 818
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 270 229
Other net finance (income) expense 7 (12)
Total net finance (income) expense from insurance and reinsurance contracts 277 217
Total amount recognised in income statement 545 1,035
Effect of movements in exchange rates (299) (19)
Total amount recognised in comprehensive income 246 1,016
Cash flows    
Net closing (assets) liabilities at 31 Dec 20,430 20,184
Insurance | Contractual service margin (CSM) | Including JVs and associates    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 22,352 21,304
Insurance service result 100 816
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 350 307
Other net finance (income) expense 7 (12)
Total net finance (income) expense from insurance and reinsurance contracts 357 295
Total amount recognised in income statement 457 1,111
Effect of movements in exchange rates (348) (63)
Total amount recognised in comprehensive income 109 1,048
Cash flows    
Net closing (assets) liabilities at 31 Dec 22,461 22,352
Insurance | Contractual service margin (CSM) | Including JVs and associates | Mainland China    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 1,652  
Cash flows    
Net closing (assets) liabilities at 31 Dec 1,484 1,652
Insurance | Contractual service margin (CSM) | Including JVs and associates | Hong Kong    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 8,536  
Cash flows    
Net closing (assets) liabilities at 31 Dec 8,840 8,536
Insurance | Contractual service margin (CSM) | Including JVs and associates | Indonesia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 739  
Cash flows    
Net closing (assets) liabilities at 31 Dec 622 739
Insurance | Contractual service margin (CSM) | Including JVs and associates | Malaysia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 2,127  
Cash flows    
Net closing (assets) liabilities at 31 Dec 2,135 2,127
Insurance | Contractual service margin (CSM) | Including JVs and associates | Singapore    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 4,962  
Cash flows    
Net closing (assets) liabilities at 31 Dec 5,160 4,962
Insurance | Contractual service margin (CSM) | Including JVs and associates | Growth markets and other    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 4,336  
Cash flows    
Net closing (assets) liabilities at 31 Dec 4,220 4,336
Reinsurance    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (1,275) (681)
Insurance service result 302 171
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (109) (45)
Other net finance (income) expense 447 (146)
Total net finance (income) expense from insurance and reinsurance contracts 338 (191)
Total amount recognised in income statement 640 (20)
Effect of movements in exchange rates 9  
Total amount recognised in comprehensive income 649 (20)
Cash flows    
Total cash flows (2,225) (574)
Other changes (3)  
Net closing (assets) liabilities at 31 Dec (2,854) (1,275)
Reinsurance | Including JVs and associates    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (1,390) (800)
Insurance service result 306 189
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (116) (53)
Other net finance (income) expense 443 (146)
Total net finance (income) expense from insurance and reinsurance contracts 327 (199)
Total amount recognised in income statement 633 (10)
Effect of movements in exchange rates 10 3
Total amount recognised in comprehensive income 643 (7)
Cash flows    
Total cash flows (2,248) (583)
Other changes (3)  
Net closing (assets) liabilities at 31 Dec (2,998) (1,390)
Reinsurance | Including JVs and associates | Mainland China    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (21) (22)
Insurance service result 5 8
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (1) (1)
Other net finance (income) expense 1  
Total net finance (income) expense from insurance and reinsurance contracts   (1)
Total amount recognised in income statement 5 7
Effect of movements in exchange rates 2 3
Total amount recognised in comprehensive income 7 10
Cash flows    
Total cash flows (8) (9)
Net closing (assets) liabilities at 31 Dec (22) (21)
Reinsurance | Including JVs and associates | Hong Kong    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (1,389) (923)
Insurance service result 279 135
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (79) (38)
Other net finance (income) expense 472 (154)
Total net finance (income) expense from insurance and reinsurance contracts 393 (192)
Total amount recognised in income statement 672 (57)
Effect of movements in exchange rates (11) (2)
Total amount recognised in comprehensive income 661 (59)
Cash flows    
Total cash flows (1,314) (407)
Net closing (assets) liabilities at 31 Dec (2,042) (1,389)
Reinsurance | Including JVs and associates | Indonesia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 9 5
Insurance service result 8 2
Net finance (income) expense from insurance and reinsurance contracts    
Other net finance (income) expense (1) (6)
Total net finance (income) expense from insurance and reinsurance contracts (1) (6)
Total amount recognised in income statement 7 (4)
Effect of movements in exchange rates (1) (1)
Total amount recognised in comprehensive income 6 (5)
Cash flows    
Total cash flows   9
Net closing (assets) liabilities at 31 Dec 15 9
Reinsurance | Including JVs and associates | Malaysia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 25 22
Insurance service result 12 9
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts 1 1
Total net finance (income) expense from insurance and reinsurance contracts 1 1
Total amount recognised in income statement 13 10
Effect of movements in exchange rates 1 (1)
Total amount recognised in comprehensive income 14 9
Cash flows    
Total cash flows (22) (6)
Net closing (assets) liabilities at 31 Dec 17 25
Reinsurance | Including JVs and associates | Singapore    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 6 178
Insurance service result (11) 17
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (32) (8)
Other net finance (income) expense (23) 1
Total net finance (income) expense from insurance and reinsurance contracts (55) (7)
Total amount recognised in income statement (66) 10
Effect of movements in exchange rates 18 (1)
Total amount recognised in comprehensive income (48) 9
Cash flows    
Total cash flows (875) (181)
Net closing (assets) liabilities at 31 Dec (917) 6
Reinsurance | Including JVs and associates | Growth markets and other    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (20) (60)
Insurance service result 13 18
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (5) (7)
Other net finance (income) expense (6) 13
Total net finance (income) expense from insurance and reinsurance contracts (11) 6
Total amount recognised in income statement 2 24
Effect of movements in exchange rates 1 5
Total amount recognised in comprehensive income 3 29
Cash flows    
Total cash flows (29) 11
Other changes (3)  
Net closing (assets) liabilities at 31 Dec (49) (20)
Reinsurance | Best estimate liabilities (BEL)    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 7 654
Insurance service result (357) 76
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (73) 6
Other net finance (income) expense 435 (156)
Total net finance (income) expense from insurance and reinsurance contracts 362 (150)
Total amount recognised in income statement 5 (74)
Effect of movements in exchange rates 15 1
Total amount recognised in comprehensive income 20 (73)
Cash flows    
Total cash flows (2,225) (574)
Other changes (3)  
Net closing (assets) liabilities at 31 Dec (2,201) 7
Reinsurance | Best estimate liabilities (BEL) | Including JVs and associates    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (93) 541
Insurance service result (348) 105
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (80) (3)
Other net finance (income) expense 432 (155)
Total net finance (income) expense from insurance and reinsurance contracts 352 (158)
Total amount recognised in income statement 4 (53)
Effect of movements in exchange rates 18 2
Total amount recognised in comprehensive income 22 (51)
Cash flows    
Total cash flows (2,248) (583)
Other changes (3)  
Net closing (assets) liabilities at 31 Dec (2,322) (93)
Reinsurance | Best estimate liabilities (BEL) | Including JVs and associates | Mainland China    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 4  
Cash flows    
Net closing (assets) liabilities at 31 Dec 3 4
Reinsurance | Best estimate liabilities (BEL) | Including JVs and associates | Hong Kong    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (44)  
Cash flows    
Net closing (assets) liabilities at 31 Dec (1,220) (44)
Reinsurance | Best estimate liabilities (BEL) | Including JVs and associates | Indonesia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 22  
Cash flows    
Net closing (assets) liabilities at 31 Dec 11 22
Reinsurance | Best estimate liabilities (BEL) | Including JVs and associates | Malaysia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 26  
Cash flows    
Net closing (assets) liabilities at 31 Dec 15 26
Reinsurance | Best estimate liabilities (BEL) | Including JVs and associates | Singapore    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (146)  
Cash flows    
Net closing (assets) liabilities at 31 Dec (1,169) (146)
Reinsurance | Best estimate liabilities (BEL) | Including JVs and associates | Growth markets and other    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 45  
Cash flows    
Net closing (assets) liabilities at 31 Dec 38 45
Reinsurance | Risk adjustment for non-financial risk (RA)    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 63 (5)
Insurance service result (205) 62
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (6) (2)
Other net finance (income) expense 5 10
Total net finance (income) expense from insurance and reinsurance contracts (1) 8
Total amount recognised in income statement (206) 70
Effect of movements in exchange rates   (2)
Total amount recognised in comprehensive income (206) 68
Cash flows    
Net closing (assets) liabilities at 31 Dec (143) 63
Reinsurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 43 (26)
Insurance service result (214) 64
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (7) (3)
Other net finance (income) expense 3 9
Total net finance (income) expense from insurance and reinsurance contracts (4) 6
Total amount recognised in income statement (218) 70
Effect of movements in exchange rates   (1)
Total amount recognised in comprehensive income (218) 69
Cash flows    
Net closing (assets) liabilities at 31 Dec (175) 43
Reinsurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Mainland China    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (3)  
Cash flows    
Net closing (assets) liabilities at 31 Dec (3) (3)
Reinsurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Hong Kong    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 84  
Cash flows    
Net closing (assets) liabilities at 31 Dec (84) 84
Reinsurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Indonesia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (7)  
Cash flows    
Net closing (assets) liabilities at 31 Dec (8) (7)
Reinsurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Malaysia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (7)  
Cash flows    
Net closing (assets) liabilities at 31 Dec (12) (7)
Reinsurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Singapore    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 3  
Cash flows    
Net closing (assets) liabilities at 31 Dec (15) 3
Reinsurance | Risk adjustment for non-financial risk (RA) | Including JVs and associates | Growth markets and other    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (27)  
Cash flows    
Net closing (assets) liabilities at 31 Dec (53) (27)
Reinsurance | Contractual service margin (CSM)    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (1,345) (1,330)
Insurance service result 864 33
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (30) (49)
Other net finance (income) expense 7  
Total net finance (income) expense from insurance and reinsurance contracts (23) (49)
Total amount recognised in income statement 841 (16)
Effect of movements in exchange rates (6) 1
Total amount recognised in comprehensive income 835 (15)
Cash flows    
Net closing (assets) liabilities at 31 Dec (510) (1,345)
Reinsurance | Contractual service margin (CSM) | Including JVs and associates    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (1,340) (1,315)
Insurance service result 868 20
Net finance (income) expense from insurance and reinsurance contracts    
Accretion of interest on GMM contracts (29) (47)
Other net finance (income) expense 8  
Total net finance (income) expense from insurance and reinsurance contracts (21) (47)
Total amount recognised in income statement 847 (27)
Effect of movements in exchange rates (8) 2
Total amount recognised in comprehensive income 839 (25)
Cash flows    
Net closing (assets) liabilities at 31 Dec (501) (1,340)
Reinsurance | Contractual service margin (CSM) | Including JVs and associates | Mainland China    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (22)  
Cash flows    
Net closing (assets) liabilities at 31 Dec (22) (22)
Reinsurance | Contractual service margin (CSM) | Including JVs and associates | Hong Kong    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (1,429)  
Cash flows    
Net closing (assets) liabilities at 31 Dec (738) (1,429)
Reinsurance | Contractual service margin (CSM) | Including JVs and associates | Indonesia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (6)  
Cash flows    
Net closing (assets) liabilities at 31 Dec 12 (6)
Reinsurance | Contractual service margin (CSM) | Including JVs and associates | Malaysia    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 6  
Cash flows    
Net closing (assets) liabilities at 31 Dec 14 6
Reinsurance | Contractual service margin (CSM) | Including JVs and associates | Singapore    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan 149  
Cash flows    
Net closing (assets) liabilities at 31 Dec 267 149
Reinsurance | Contractual service margin (CSM) | Including JVs and associates | Growth markets and other    
Analysis of movements in insurance and reinsurance contract balances by measurement component    
Net opening (assets) liabilities at 1 Jan (38)  
Cash flows    
Net closing (assets) liabilities at 31 Dec $ (34) $ (38)