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Derivative Financial Instruments and Risk Management (Details)
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3 Months Ended | 12 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2012
GM Financial [Member]
Derivative Financial Instruments, Assets [Member]
USD ($)
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Dec. 31, 2011
GM Financial [Member]
Derivative Financial Instruments, Assets [Member]
USD ($)
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Mar. 31, 2012
GM Financial [Member]
Derivative Financial Instruments, Liabilities [Member]
USD ($)
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Dec. 31, 2011
GM Financial [Member]
Derivative Financial Instruments, Liabilities [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
USD ($)
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Mar. 31, 2011
Automotive [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
USD ($)
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Dec. 31, 2010
Automotive [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Level 1 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Level 1 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Level 2 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Level 2 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Level 3 [Member]
USD ($)
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Mar. 31, 2011
Automotive [Member]
Level 3 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Level 3 [Member]
USD ($)
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Dec. 31, 2010
Automotive [Member]
Level 3 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Other Current Assets [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Other Current Assets [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Other Noncurrent Assets [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Other Noncurrent Assets [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Other Current Liabilities [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Other Current Liabilities [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Other Noncurrent Liability [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Other Noncurrent Liability [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Foreign Exchange Contract [Member]
USD ($)
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Mar. 31, 2011
Automotive [Member]
Foreign Exchange Contract [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Foreign Exchange Contract [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Foreign Exchange Contract [Member]
Level 1 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Foreign Exchange Contract [Member]
Level 1 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Foreign Exchange Contract [Member]
Level 2 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Foreign Exchange Contract [Member]
Level 2 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Foreign Exchange Contract [Member]
Level 3 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Foreign Exchange Contract [Member]
Level 3 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Foreign Exchange Contract [Member]
Other Current Assets [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Foreign Exchange Contract [Member]
Other Current Assets [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Foreign Exchange Contract [Member]
Other Noncurrent Assets [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Foreign Exchange Contract [Member]
Other Noncurrent Assets [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Foreign Exchange Contract [Member]
Other Current Liabilities [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Foreign Exchange Contract [Member]
Other Current Liabilities [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Foreign Exchange Contract [Member]
Other Noncurrent Liability [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Foreign Exchange Contract [Member]
Other Noncurrent Liability [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Commodity Contract [Member]
USD ($)
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Mar. 31, 2011
Automotive [Member]
Commodity Contract [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Commodity Contract [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Commodity Contract [Member]
Level 1 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Commodity Contract [Member]
Level 1 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Commodity Contract [Member]
Level 2 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Commodity Contract [Member]
Level 2 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Commodity Contract [Member]
Level 3 [Member]
USD ($)
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Mar. 31, 2011
Automotive [Member]
Commodity Contract [Member]
Level 3 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Commodity Contract [Member]
Level 3 [Member]
USD ($)
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Dec. 31, 2010
Automotive [Member]
Commodity Contract [Member]
Level 3 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Commodity Contract [Member]
Other Current Assets [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Commodity Contract [Member]
Other Current Assets [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Commodity Contract [Member]
Other Noncurrent Assets [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Commodity Contract [Member]
Other Noncurrent Assets [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Commodity Contract [Member]
Other Current Liabilities [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Commodity Contract [Member]
Other Current Liabilities [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Commodity Contract [Member]
Other Noncurrent Liability [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Commodity Contract [Member]
Other Noncurrent Liability [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
EUR (€)
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Mar. 31, 2011
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Level 1 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Level 1 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Level 2 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Level 2 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Level 3 [Member]
USD ($)
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Mar. 31, 2011
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Level 3 [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Level 3 [Member]
USD ($)
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Dec. 31, 2010
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Level 3 [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Other Current Assets [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Other Current Assets [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Other Noncurrent Assets [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Other Noncurrent Assets [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Other Current Liabilities [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Other Current Liabilities [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Other Noncurrent Liability [Member]
USD ($)
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Dec. 31, 2011
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
Other Noncurrent Liability [Member]
USD ($)
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Mar. 31, 2012
Automotive [Member]
Warrant [Member]
USD ($)
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Mar. 31, 2011
Automotive [Member]
Warrant [Member]
USD ($)
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Mar. 31, 2012
Coal [Member]
Automotive [Member]
Commodity Contract [Member]
EUR (€)
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Mar. 31, 2012
Heavy Fuel Oil [Member]
Automotive [Member]
Commodity Contract [Member]
EUR (€)
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Mar. 31, 2012
Euro/Turkish Lira Exchange Rate [Member]
Automotive [Member]
Embedded Derivative Financial Instruments [Member]
EUR (€)
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| Derivatives, Fair Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Forward Contract Price | € 106.22 | € 512.78 | € 2.86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Supplier nonperformance risk | 3.68% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notional Amount of Derivatives | 11,990,000,000 | 10,534,000,000 | 7,294,000,000 | 6,507,000,000 | 3,240,000,000 | 2,566,000,000 | 1,456,000,000 | 1,461,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Derivatives Not Designated as Hedging Instruments Assets at Fair Value | 109,000,000 | 101,000,000 | 91,000,000 | 124,000,000 | 68,000,000 | 64,000,000 | 0 | 0 | 16,000,000 | 9,000,000 | 9,000,000 | 0 | 25,000,000 | 28,000,000 | 82,000,000 | 124,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Derivatives Not Designated as Hedging Instruments Liabilities at Fair Value | 53,000,000 | 57,000,000 | 4,000,000 | 10,000,000 | 49,000,000 | 46,000,000 | 0 | 0 | 2,000,000 | 10,000,000 | 0 | 5,000,000 | 2,000,000 | 1,000,000 | 4,000,000 | 5,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Asset, Fair Value, Gross Asset | 200,000,000 | 225,000,000 | 0 | 0 | 80,000,000 | 77,000,000 | 120,000,000 | 148,000,000 | 68,000,000 | 64,000,000 | 0 | 0 | 68,000,000 | 64,000,000 | 0 | 0 | 25,000,000 | 9,000,000 | 0 | 0 | 9,000,000 | 9,000,000 | 16,000,000 | 0 | 107,000,000 | 152,000,000 | 0 | 0 | 3,000,000 | 4,000,000 | 104,000,000 | 148,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Liability, Fair Value, Gross Liability | 57,000,000 | 67,000,000 | 0 | 0 | 57,000,000 | 57,000,000 | 0 | 10,000,000 | 49,000,000 | 46,000,000 | 0 | 0 | 49,000,000 | 46,000,000 | 0 | 0 | 2,000,000 | 15,000,000 | 0 | 0 | 2,000,000 | 5,000,000 | 0 | 10,000,000 | 6,000,000 | 6,000,000 | 0 | 0 | 6,000,000 | 6,000,000 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 120,000,000 | 57,000,000 | 138,000,000 | 0 | 16,000,000 | 0 | (10,000,000) | 0 | 104,000,000 | 57,000,000 | 148,000,000 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | (39,000,000) | 53,000,000 | 4,000,000 | 0 | (43,000,000) | 53,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset and Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) | 4,000,000 | 4,000,000 | 0 | 0 | 4,000,000 | 4,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (7,000,000) | 0 | (2,000,000) | 0 | (5,000,000) | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis,Asset, Issues | 24,000,000 | 0 | 24,000,000 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Gains and (losses) in earnings attributable to the change in unrealized gains or (losses) relating to assets still held at the reporting date | (42,000,000) | 53,000,000 | 5,000,000 | 0 | (47,000,000) | 53,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Nonoperating Income (Expense) | (65,000,000) | 53,000,000 | (16,000,000) | (10,000,000) | (6,000,000) | 0 | (43,000,000) | 59,000,000 | 0 | 4,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class of Warrant or Right, Outstanding | 4,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Exercise price for warrants | 2.76 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Proceeds from Warrant Exercises | 48,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Asset, Notional Amount | 1,700,000,000 | 2,000,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative Liability, Notional Amount | 1,700,000,000 | 2,000,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Long-term Purchase Commitment, Amount | € 1,000,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||