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Note 25 Post employment commitments (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  | € 7,398 |  | € 8,177 |  |  |
Defined benefit obligation, at present value |  | 7,180 |  | 7,398 |  | € 8,177 |
SPAIN |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  | 4,287 |  |  |  |  |
Defined benefit obligation, at present value |  | 3,670 |  | 4,287 |  |  |
Plan assets |  | 249 |  |  |  |  |
Plan assets |  | 206 |  | 249 |  |  |
Net liability asset |  | 4,038 |  | 4,326 |  | 4,547 |
Net liability asset |  | 3,464 |  | 4,038 |  | 4,326 |
SPAIN | Current service cost [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 5 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 5 |  | 5 |  | 4 |
SPAIN | Interest income or expense [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 22 |  |  |  |  |
Plan assets changes of the year |  | 2 |  |  |  |  |
Net liability asset changes of the year |  | 20 |  | 28 |  | 42 |
SPAIN | Contributions by plan participants [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
SPAIN | Employer contributions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | (11) |  |  |  |  |
Net liability asset changes of the year |  | 11 |  | 0 |  | 0 |
SPAIN | Past service cost [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value | [1] | 75 |  |  |  |  |
Plan assets changes of the year | [1] | 0 |  |  |  |  |
Net liability asset changes of the year |  | 75 | [1] | 224 | [2] | 190 | [2]
SPAIN | Remeasurements [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (106) |  |  |  |  |
Plan assets changes of the year |  | (8) |  |  |  |  |
Net liability asset changes of the year |  | (98) |  | 95 |  | 231 |
SPAIN | Return of plan assets [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value | [3] | 0 |  |  |  |  |
Plan assets changes of the year | [3] | (8) |  |  |  |  |
Net liability asset changes of the year |  | 8 | [3] | (41) | [4] | (67) | [4]
SPAIN | From changes in demographic assumptions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 60 |  | 0 |
SPAIN | From changes in financial assumptions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (61) |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | (61) |  | 79 |  | 239 |
SPAIN | Other actuarial gains and losses [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (45) |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | (45) |  | (3) |  | 59 |
SPAIN | Benefit payments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (625) |  |  |  |  |
Plan assets changes of the year |  | (26) |  |  |  |  |
Net liability asset changes of the year |  | (599) |  | (643) |  | (702) |
SPAIN | Settlements payments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
SPAIN | Business combinations [member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
SPAIN | Effect on changes in foreign exchange rates [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
SPAIN | Conversions to defined contributions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
SPAIN | Other effects Post employment commitments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 12 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 12 |  | 3 |  | 14 |
SPAIN | of which vested benefit obligation relating to current employees [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  | 3,596 |  |  |  |  |
SPAIN | Of which vested benefit obligation relating to retired employees [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  | 74 |  |  |  |  |
MEXICO |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  | 666 |  |  |  |  |
Defined benefit obligation, at present value |  | 779 |  | 666 |  |  |
Plan assets |  | 638 |  |  |  |  |
Plan assets |  | 655 |  | 638 |  |  |
Net liability asset |  | 28 |  | 72 |  | 71 |
Net liability asset |  | 124 |  | 28 |  | 72 |
MEXICO | Current service cost [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 5 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 5 |  | 5 |  | 4 |
MEXICO | Interest income or expense [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 53 |  |  |  |  |
Plan assets changes of the year |  | 52 |  |  |  |  |
Net liability asset changes of the year |  | 1 |  | 6 |  | 9 |
MEXICO | Contributions by plan participants [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
MEXICO | Employer contributions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 2 |  |  |  |  |
Net liability asset changes of the year |  | (2) |  | (86) |  | (47) |
MEXICO | Past service cost [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value | [1] | 0 |  |  |  |  |
Plan assets changes of the year | [1] | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 | [1] | (1) | [2] | 15 | [2]
MEXICO | Remeasurements [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 79 |  |  |  |  |
Plan assets changes of the year |  | (49) |  |  |  |  |
Net liability asset changes of the year |  | 128 |  | 62 |  | 9 |
MEXICO | Return of plan assets [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value | [3] | 0 |  |  |  |  |
Plan assets changes of the year | [3] | (49) |  |  |  |  |
Net liability asset changes of the year |  | 49 | [3] | (31) | [4] | (90) | [4]
MEXICO | From changes in demographic assumptions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (4) |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | (4) |  | 0 |  | 0 |
MEXICO | From changes in financial assumptions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 84 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 84 |  | (19) |  | 87 |
MEXICO | Other actuarial gains and losses [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (2) |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | (2) |  | 112 |  | 12 |
MEXICO | Benefit payments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (67) |  |  |  |  |
Plan assets changes of the year |  | (65) |  |  |  |  |
Net liability asset changes of the year |  | (1) |  | (1) |  | (1) |
MEXICO | Settlements payments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
MEXICO | Business combinations [member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 40 |  |  |  |  |
Net liability asset changes of the year |  | (40) |  | (19) |  | 7 |
MEXICO | Effect on changes in foreign exchange rates [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 42 |  |  |  |  |
Plan assets changes of the year |  | 37 |  |  |  |  |
Net liability asset changes of the year |  | 5 |  | (10) |  | 5 |
MEXICO | Conversions to defined contributions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
MEXICO | Other effects Post employment commitments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
MEXICO | of which vested benefit obligation relating to current employees [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  |  |  |  |  |  |
MEXICO | Of which vested benefit obligation relating to retired employees [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  |  |  |  |  |  |
UNITED STATES |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset |  | 0 |  | 52 |  | 39 |
Net liability asset |  |  |  | 0 |  | 52 |
UNITED STATES | Current service cost [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | 1 |  | 0 |
UNITED STATES | Interest income or expense [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | 2 |  | 0 |
UNITED STATES | Contributions by plan participants [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | 0 |  | 0 |
UNITED STATES | Employer contributions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | 0 |  | (3) |
UNITED STATES | Past service cost [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year | [2] |  |  | 0 |  | 0 |
UNITED STATES | Remeasurements [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | (4) |  | 16 |
UNITED STATES | Return of plan assets [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year | [4] |  |  | (35) |  | (28) |
UNITED STATES | From changes in demographic assumptions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | (3) |  | 0 |
UNITED STATES | From changes in financial assumptions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | 34 |  | 42 |
UNITED STATES | Other actuarial gains and losses [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | 0 |  | 2 |
UNITED STATES | Benefit payments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | (2) |  | (2) |
UNITED STATES | Settlements payments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | 0 |  | 0 |
UNITED STATES | Business combinations [member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | (44) |  | 3 |
UNITED STATES | Effect on changes in foreign exchange rates [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | (5) |  | 0 |
UNITED STATES | Conversions to defined contributions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | 0 |  | 0 |
UNITED STATES | Other effects Post employment commitments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Net liability asset changes of the year |  |  |  | 0 |  | (1) |
TURKEY |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  | 367 |  |  |  |  |
Defined benefit obligation, at present value |  | 272 |  | 367 |  |  |
Plan assets |  | 282 |  |  |  |  |
Plan assets |  | 209 |  | 282 |  |  |
Net liability asset |  | 85 |  | 86 |  | 83 |
Net liability asset |  | 63 |  | 85 |  | 86 |
TURKEY | Current service cost [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 16 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 16 |  | 18 |  | 20 |
TURKEY | Interest income or expense [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 40 |  |  |  |  |
Plan assets changes of the year |  | 32 |  |  |  |  |
Net liability asset changes of the year |  | 9 |  | 8 |  | 11 |
TURKEY | Contributions by plan participants [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 3 |  |  |  |  |
Plan assets changes of the year |  | 3 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
TURKEY | Employer contributions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 11 |  |  |  |  |
Net liability asset changes of the year |  | (11) |  | (14) |  | (14) |
TURKEY | Past service cost [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value | [1] | 2 |  |  |  |  |
Plan assets changes of the year | [1] | 0 |  |  |  |  |
Net liability asset changes of the year |  | 2 | [1] | 2 | [2] | 3 | [2]
TURKEY | Remeasurements [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 21 |  |  |  |  |
Plan assets changes of the year |  | 11 |  |  |  |  |
Net liability asset changes of the year |  | 10 |  | 18 |  | 2 |
TURKEY | Return of plan assets [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value | [3] | 0 |  |  |  |  |
Plan assets changes of the year | [3] | 11 |  |  |  |  |
Net liability asset changes of the year |  | (11) | [3] | 23 | [4] | 5 | [4]
TURKEY | From changes in demographic assumptions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | (13) |
TURKEY | From changes in financial assumptions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (18) |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | (18) |  | 54 |  | (41) |
TURKEY | Other actuarial gains and losses [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 39 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 39 |  | (59) |  | 51 |
TURKEY | Benefit payments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (13) |  |  |  |  |
Plan assets changes of the year |  | (7) |  |  |  |  |
Net liability asset changes of the year |  | (6) |  | (6) |  | (11) |
TURKEY | Settlements payments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
TURKEY | Business combinations [member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
TURKEY | Effect on changes in foreign exchange rates [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (166) |  |  |  |  |
Plan assets changes of the year |  | (123) |  |  |  |  |
Net liability asset changes of the year |  | (43) |  | (26) |  | (9) |
TURKEY | Conversions to defined contributions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
TURKEY | Other effects Post employment commitments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
TURKEY | of which vested benefit obligation relating to current employees [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  |  |  |  |  |  |
TURKEY | Of which vested benefit obligation relating to retired employees [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  |  |  |  |  |  |
Rest of the world [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  | 465 |  |  |  |  |
Defined benefit obligation, at present value |  | 449 |  | 465 |  |  |
Plan assets |  | 439 |  |  |  |  |
Plan assets |  | 424 |  | 439 |  |  |
Net liability asset |  | 27 |  | 38 |  | 36 |
Net liability asset |  | 24 |  | 27 |  | 38 |
Rest of the world [Member] | Current service cost [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 3 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 3 |  | 3 |  | 3 |
Rest of the world [Member] | Interest income or expense [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 6 |  |  |  |  |
Plan assets changes of the year |  | 5 |  |  |  |  |
Net liability asset changes of the year |  | 1 |  | 1 |  | 3 |
Rest of the world [Member] | Contributions by plan participants [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 2 |  |  |  |  |
Plan assets changes of the year |  | 2 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
Rest of the world [Member] | Employer contributions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 1 |  |  |  |  |
Net liability asset changes of the year |  | (1) |  | (1) |  | (1) |
Rest of the world [Member] | Past service cost [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value | [1] | 2 |  |  |  |  |
Plan assets changes of the year | [1] | 0 |  |  |  |  |
Net liability asset changes of the year |  | 2 | [1] | 3 | [2] | 2 | [2]
Rest of the world [Member] | Remeasurements [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (24) |  |  |  |  |
Plan assets changes of the year |  | (19) |  |  |  |  |
Net liability asset changes of the year |  | (5) |  | (14) |  | (1) |
Rest of the world [Member] | Return of plan assets [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value | [3] | 0 |  |  |  |  |
Plan assets changes of the year | [3] | (19) |  |  |  |  |
Net liability asset changes of the year |  | 19 | [3] | (26) | [4] | (50) | [4]
Rest of the world [Member] | From changes in demographic assumptions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (2) |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | (2) |  | 0 |  | (2) |
Rest of the world [Member] | From changes in financial assumptions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (7) |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | (7) |  | 17 |  | 52 |
Rest of the world [Member] | Other actuarial gains and losses [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (15) |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | (15) |  | (5) |  | (1) |
Rest of the world [Member] | Benefit payments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (12) |  |  |  |  |
Plan assets changes of the year |  | (11) |  |  |  |  |
Net liability asset changes of the year |  | (1) |  | (1) |  | (3) |
Rest of the world [Member] | Settlements payments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (1) |  |  |  |  |
Plan assets changes of the year |  | (1) |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
Rest of the world [Member] | Business combinations [member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | (2) |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | (2) |  | 0 |  | 0 |
Rest of the world [Member] | Effect on changes in foreign exchange rates [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 9 |  |  |  |  |
Plan assets changes of the year |  | 9 |  |  |  |  |
Net liability asset changes of the year |  | 1 |  | (4) |  | 1 |
Rest of the world [Member] | Conversions to defined contributions [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | 0 |  | 0 |
Rest of the world [Member] | Other effects Post employment commitments [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation at present value |  | 0 |  |  |  |  |
Plan assets changes of the year |  | 0 |  |  |  |  |
Net liability asset changes of the year |  | 0 |  | € 0 |  | € 0 |
Rest of the world [Member] | of which vested benefit obligation relating to current employees [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
Defined benefit obligation, at present value |  |  |  |  |  |  |
Rest of the world [Member] | Of which vested benefit obligation relating to retired employees [Member] |  |  |  |  |  |  |
Post employment commitments 2021 [Line Items] |  |  |  |  |  |  |
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[1] | (*) Including gains and losses arising from settlements.
[2] | (*) Includes gains and losses from settlements.
[3] | (**) Excluding interest, which is recorded under "Interest income or expense".
[4] | (**) Excludes interest which is reflected in the line item “Interest income and expense”.

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