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Commitments, contingencies and guarantees (Details) (EUR €) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Contractual Obligations |  |  |  |
Contractual obligations | € 2,633,943,000 |  |  |
1 year | 1,631,981,000 |  |  |
2 year | 150,214,000 |  |  |
3 year | 59,794,000 |  |  |
4 year | 53,223,000 |  |  |
5 year | 661,962,000 |  |  |
After 5 years | 76,769,000 |  |  |
Purchase options |  |  |  |
Purchase options | 22,982,000 |  |  |
1 year |  |  |  |
2 years | 8,999,000 |  |  |
3 years |  |  |  |
4 years | 13,983,000 |  |  |
5 years |  |  |  |
After 5 years |  |  |  |
Commitments, contingencies and guarantees (Textual) [Abstract] |  |  |  |
Expense on operating lease payments | 41,600,000 |  | 40,600,000 | 37,900,000
Long-term Debt [Member] |  |  |  |
Contractual Obligations |  |  |  |
Contractual obligations | 831,194,000 | [1] |  |
1 year | 39,801,000 | [1] |  |
2 year | 39,726,000 | [1] |  |
3 year | 39,726,000 | [1] |  |
4 year | 39,726,000 | [1] |  |
5 year | 639,726,000 | [1] |  |
After 5 years | 32,489,000 | [1] |  |
Operating lease obligations [Member] |  |  |  |
Contractual Obligations |  |  |  |
Contractual obligations | 98,827,000 |  |  |
1 year | 32,195,000 |  |  |
2 year | 22,267,000 |  |  |
3 year | 17,192,000 |  |  |
4 year | 13,465,000 |  |  |
5 year | 5,265,000 |  |  |
After 5 years | 8,443,000 |  |  |
Purchase obligations [Member] |  |  |  |
Contractual Obligations |  |  |  |
Contractual obligations | 1,643,955,000 |  |  |
1 year | 1,557,021,000 |  |  |
2 year | 84,012,000 |  |  |
3 year | 2,876,000 |  |  |
4 year | 32,000 |  |  |
5 year | 14,000 |  |  |
After 5 years |  |  |  |
Unrecognized tax benefits [Member] |  |  |  |
Contractual Obligations |  |  |  |
Contractual obligations | 59,967,000 |  |  |
1 year | 2,964,000 |  |  |
2 year | 4,209,000 |  |  |
3 year |  |  |  |
4 year |  |  |  |
5 year | 16,957,000 |  |  |
After 5 years | € 35,837,000 |  |  |
[1] | See Note 14 for the amounts excluding interest expenses.

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