Condensed Consolidating Financial Statements (Details 3) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 1,778.8	$ 1,996.6	$ 3,530.2	$ 1,710.8
Restricted cash	63.3	86.1
Accounts and notes receivable—net	167.1	191.5
Inventories	267.7	202.9
Deferred income taxes	55.1	84.0
Prepaid income taxes	27.7	34.8
Other current assets	20.0	18.6
Total current assets	2,379.7	2,614.5
Property, plant and equipment—net	5,925.0	5,525.8
Investments in and advances to affiliates	853.5	861.5
Due from affiliates		0
Goodwill	2,090.4	2,092.8
Other assets	236.7	243.6
Total assets	11,485.3	11,338.2
Current liabilities:
Accounts and notes payable and accrued expenses	693.2	589.9
Income taxes payable	79.4	16.0
Customer advances	495.2	325.4
Other current liabilities	43.5	48.4
Total current liabilities	1,311.3	979.7
Long-term debt	4,592.5	4,592.5
Deferred income taxes	783.0	818.6
Due to affiliates		0
Other noncurrent liabilities	380.0	374.9
Stockholders' equity:
Preferred stock	0	0
Common stock	0.5	0.5
Paid-in capital	1,426.5	1,415.9
Retained earnings	3,334.1	3,175.3
Treasury stock	(458.9)	(222.2)
Accumulated other comprehensive income (loss)	(240.3)	(159.8)	(52.0)	(42.6)
Total stockholders' equity	4,061.9	4,209.7
Noncontrolling interest	356.6	362.8
Total equity	4,418.5	4,572.5	5,308.3	5,438.4
Total liabilities and equity	11,485.3	11,338.2
Reportable legal entities | Parent
Current assets:
Cash and cash equivalents	0	0	0.1	0.1
Accounts and notes receivable—net	0
Prepaid income taxes	2.2	1.9
Total current assets	2.2	1.9
Investments in and advances to affiliates	6,291.1	6,212.5
Due from affiliates	570.7	570.7
Goodwill		0
Total assets	6,864.0	6,785.1
Current liabilities:
Accounts and notes payable and accrued expenses	2,802.1	2,575.4
Other current liabilities	0	0
Total current liabilities	2,802.1	2,575.4
Stockholders' equity:
Preferred stock		0
Common stock	0.5	0.5
Paid-in capital	1,426.5	1,415.9
Retained earnings	3,334.1	3,175.3
Treasury stock	(458.9)	(222.2)
Accumulated other comprehensive income (loss)	(240.3)	(159.8)
Total stockholders' equity	4,061.9	4,209.7
Noncontrolling interest		0
Total equity	4,061.9	4,209.7
Total liabilities and equity	6,864.0	6,785.1
Reportable legal entities | CFI
Current assets:
Cash and cash equivalents	58.7	105.7	1,398.9	20.4
Accounts and notes receivable—net	2,318.2	2,286.5
Inventories	0	0
Deferred income taxes		0
Prepaid income taxes	2.9	0
Other current assets		0
Total current assets	2,379.8	2,392.2
Property, plant and equipment—net		0
Investments in and advances to affiliates	9,327.0	9,208.7
Due from affiliates		0
Other assets	64.8	65.1
Total assets	11,771.6	11,666.0
Current liabilities:
Accounts and notes payable and accrued expenses	235.4	207.7
Income taxes payable	0	10.8
Customer advances		0
Other current liabilities	0	0
Total current liabilities	235.4	218.5
Long-term debt	4,592.5	4,592.5
Deferred income taxes	44.5	34.8
Due to affiliates	572.4	572.4
Other noncurrent liabilities	35.6	35.3
Stockholders' equity:
Common stock		0
Paid-in capital	(12.6)	(12.6)
Retained earnings	6,544.1	6,384.9
Treasury stock		0
Accumulated other comprehensive income (loss)	(240.3)	(159.8)
Total stockholders' equity	6,291.2	6,212.5
Noncontrolling interest		0
Total equity	6,291.2	6,212.5
Total liabilities and equity	11,771.6	11,666.0
Reportable legal entities | Other Subsidiaries
Current assets:
Cash and cash equivalents	1,720.1	1,890.9	2,131.2	1,690.3
Restricted cash	63.3	86.1
Accounts and notes receivable—net	811.1	651.9
Inventories	267.7	202.9
Deferred income taxes	55.1	84.0
Prepaid income taxes	27.7	34.8
Other current assets	20.0	18.6
Total current assets	2,965.0	2,969.2
Property, plant and equipment—net	5,925.0	5,525.8
Investments in and advances to affiliates	853.5	861.5
Due from affiliates	1.7	1.7
Goodwill	2,090.4	2,092.8
Other assets	171.9	178.5
Total assets	12,007.5	11,629.5
Current liabilities:
Accounts and notes payable and accrued expenses	617.9	553.8
Income taxes payable	84.5	7.1
Customer advances	495.2	325.4
Other current liabilities	43.5	48.4
Total current liabilities	1,241.1	934.7
Long-term debt		0
Deferred income taxes	738.5	783.8
Other noncurrent liabilities	344.4	339.6
Stockholders' equity:
Preferred stock	16.4	16.4
Common stock	1.1	1.1
Paid-in capital	8,283.5	8,283.5
Retained earnings	1,266.6	1,067.8
Treasury stock		0
Accumulated other comprehensive income (loss)	(240.7)	(160.2)
Total stockholders' equity	9,326.9	9,208.6
Noncontrolling interest	356.6	362.8
Total equity	9,683.5	9,571.4
Total liabilities and equity	12,007.5	11,629.5
Eliminations
Current assets:
Cash and cash equivalents			0	0
Accounts and notes receivable—net	(2,962.2)	(2,746.9)
Inventories		0
Prepaid income taxes	(5.1)	(1.9)
Total current assets	(2,967.3)	(2,748.8)
Investments in and advances to affiliates	(15,618.1)	(15,421.2)
Due from affiliates	(572.4)	(572.4)
Goodwill		0
Total assets	(19,157.8)	(18,742.4)
Current liabilities:
Accounts and notes payable and accrued expenses	(2,962.2)	(2,747.0)
Income taxes payable	(5.1)	(1.9)
Customer advances		0
Other current liabilities	0	0
Total current liabilities	(2,967.3)	(2,748.9)
Long-term debt		0
Deferred income taxes	0	0
Due to affiliates	(572.4)	(572.4)
Stockholders' equity:
Preferred stock	(16.4)	(16.4)
Common stock	(1.1)	(1.1)
Paid-in capital	(8,270.9)	(8,270.9)
Retained earnings	(7,810.7)	(7,452.7)
Treasury stock		0
Accumulated other comprehensive income (loss)	481.0	320.0
Total stockholders' equity	(15,618.1)	(15,421.1)
Noncontrolling interest		0
Total equity	(15,618.1)	(15,421.1)
Total liabilities and equity	$ (19,157.8)	$ (18,742.4)