Income Taxes (Details) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 USD ($)	Mar. 31, 2014 EUR (€)
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible [Line Items]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound	$ 325
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	725
Estimated Tax Settlement Interest Gain (Loss) Noncash, Range, Upper Limit	100
Tax Benefits Claimed Related to the French Revenue Authority.	327	237
Estimated Tax Settlement Gain (Loss) Noncash, Range, Lower Limit	325
Estimated Tax Settlement Gain (Loss) Noncash, Range, Upper Limit	450
Estimated Tax Settlement Interest Gain (Loss) Noncash, Range, Lower Limit	$ 50