Statement Of Cash Flows [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||||||
| Profit (loss) |
572,000,000
EUR
|
— |
6,049,000,000
EUR
|
6,621,000,000
EUR
|
6,049,000,000
EUR
|
5,581,000,000
EUR
|
— |
6,073,000,000
EUR
|
492,000,000
EUR
|
5,581,000,000
EUR
|
5,625,000,000
EUR
|
5,625,000,000
EUR
|
6,026,000,000
EUR
|
401,000,000
EUR
|
| Adjustments to reconcile profit (loss) [abstract] | ||||||||||||||
| Adjustments for income tax expense | — | — | — |
1,935,000,000
EUR
|
— | — | — |
1,923,000,000
EUR
|
— | — | — | — |
2,263,000,000
EUR
|
— |
| Adjustments for decrease (increase) in inventories | — | — | — |
458,000,000
EUR
|
— | — | — |
587,000,000
EUR
|
— | — | — | — |
313,000,000
EUR
|
— |
| Adjustments for provisions | — | — | — |
61,000,000
EUR
|
— | — | — |
53,000,000
EUR
|
— | — | — | — |
7,000,000
EUR
|
— |
| Adjustments for share-based payments | — | — | — |
161,000,000
EUR
|
— | — | — |
108,000,000
EUR
|
— | — | — | — |
151,000,000
EUR
|
— |
| Other adjustments to reconcile profit (loss) | — | — | — |
53,000,000
EUR
|
— | — | — |
1,000,000
EUR
|
— | — | — | — |
2,000,000
EUR
|
— |
| Cash flows from (used in) operations | — | — | — |
10,305,000,000
EUR
|
— | — | — |
10,933,000,000
EUR
|
— | — | — | — |
10,641,000,000
EUR
|
— |
| Income taxes paid (refund), classified as operating activities | — | — | — |
2,333,000,000
EUR
|
— | — | — |
1,875,000,000
EUR
|
— | — | — | — |
2,532,000,000
EUR
|
— |
| Cash flows from (used in) operating activities | — | — | — |
7,972,000,000
EUR
|
— | — | — |
9,058,000,000
EUR
|
— | — | — | — |
8,109,000,000
EUR
|
— |
| Cash flows from (used in) investing activities [abstract] | ||||||||||||||
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — | — |
101,000,000
EUR
|
— | — | — |
89,000,000
EUR
|
— | — | — | — |
97,000,000
EUR
|
— |
| Purchase of property, plant and equipment, classified as investing activities | — | — | — |
1,108,000,000
EUR
|
— | — | — |
863,000,000
EUR
|
— | — | — | — |
1,316,000,000
EUR
|
— |
| Purchase of intangible assets, classified as investing activities | — | — | — |
232,000,000
EUR
|
— | — | — |
158,000,000
EUR
|
— | — | — | — |
210,000,000
EUR
|
— |
| Proceeds from sales of other long-term assets, classified as investing activities | — | — | — |
137,000,000
EUR
|
— | — | — |
51,000,000
EUR
|
— | — | — | — |
55,000,000
EUR
|
— |
| Purchase of other long-term assets, classified as investing activities | — | — | — |
142,000,000
EUR
|
— | — | — |
128,000,000
EUR
|
— | — | — | — |
160,000,000
EUR
|
— |
| Interest received, classified as investing activities | — | — | — |
148,000,000
EUR
|
— | — | — |
169,000,000
EUR
|
— | — | — | — |
146,000,000
EUR
|
— |
| Cash flows from (used in) investing activities | — | — | — |
3,246,000,000
EUR
|
— | — | — |
1,481,000,000
EUR
|
— | — | — | — |
2,237,000,000
EUR
|
— |
| Cash flows from (used in) financing activities [abstract] | ||||||||||||||
| Proceeds from borrowings, classified as financing activities | — | — | — |
4,748,000,000
EUR
|
— | — | — |
3,117,000,000
EUR
|
— | — | — | — |
5,911,000,000
EUR
|
— |
| Repayments of borrowings, classified as financing activities | — | — | — |
3,550,000,000
EUR
|
— | — | — |
3,577,000,000
EUR
|
— | — | — | — |
4,912,000,000
EUR
|
— |
| Interest paid, classified as financing activities | — | — | — |
488,000,000
EUR
|
— | — | — |
624,000,000
EUR
|
— | — | — | — |
694,000,000
EUR
|
— |
| Other inflows (outflows) of cash, classified as financing activities | — | — | — |
500,000,000
EUR
|
— | — | — |
720,000,000
EUR
|
— | — | — | — |
464,000,000
EUR
|
— |
| Cash flows from (used in) financing activities | — | — | — |
7,099,000,000
EUR
|
— | — | — |
5,804,000,000
EUR
|
— | — | — | — |
4,667,000,000
EUR
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — |
2,373,000,000
EUR
|
— | — | — |
1,773,000,000
EUR
|
— | — | — | — |
1,205,000,000
EUR
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — |
285,000,000
EUR
|
— | — | — |
414,000,000
EUR
|
— | — | — | — |
179,000,000
EUR
|
— |
| Cash and cash equivalents | — |
3,415,000,000
EUR
|
— | — | — | — |
5,548,000,000
EUR
|
— | — | — | — | — | — | — |