Guarantor Financial Information (Condensed Consolidating Balance Sheets) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 832.9	$ 882.1	$ 1,089.5	$ 1,160.7
Accounts and notes receivable, net	2,218.8	2,157.5
Inventories	1,466.3	1,308.8
Other current assets	599.4	594.3
Accounts and notes receivable affiliates	0	0
Total current assets	5,117.4	4,942.7
Investment in affiliates	0	0
Property, plant and equipment, net	1,653.0	1,652.6
Intangible assets, net	10,261.9	10,339.8
Other noncurrent assets	1,561.0	1,557.8
Total assets	18,593.3	18,492.9
Current liabilities:
Accounts payable and accruals	3,205.8	3,197.6
Short-term borrowings and current maturities of long-term debt	965.1	963.7
Accounts and note payable affiliates	0	0
Total current liabilities	4,170.9	4,161.3
Long-term debt	2,271.1	2,269.3
Note payable affiliate	0	0
Other noncurrent liabilities	4,803.8	4,833.0
Total liabilities	11,245.8	11,263.6
Equity:
Total equity	7,347.5	7,229.3	7,298.5	7,012.4
Total liabilities and equity	18,593.3	18,492.9
IR Ireland [Member]
Current assets:
Cash and cash equivalents	0	0	0	0
Accounts and notes receivable, net	0	0
Inventories	0	0
Other current assets	0.4	0.1
Accounts and notes receivable affiliates	304.9	148.9
Total current assets	305.3	149.0
Investment in affiliates	8,917.8	8,885.1
Property, plant and equipment, net	0	0
Intangible assets, net	0	0
Other noncurrent assets	0	0
Total assets	9,223.1	9,034.1
Current liabilities:
Accounts payable and accruals	7.5	70.5
Short-term borrowings and current maturities of long-term debt	0	0
Accounts and note payable affiliates	1,868.1	1,734.3
Total current liabilities	1,875.6	1,804.8
Long-term debt	0	0
Note payable affiliate	0	0
Other noncurrent liabilities	0	0
Total liabilities	1,875.6	1,804.8
Equity:
Total equity	7,347.5	7,229.3
Total liabilities and equity	9,223.1	9,034.1
IR Limited [Member]
Current assets:
Cash and cash equivalents	0	0	0	0
Accounts and notes receivable, net	0	0
Inventories	0	0
Other current assets	0	0
Accounts and notes receivable affiliates	3,039.2	3,039.2
Total current assets	3,039.2	3,039.2
Investment in affiliates	7,106.6	7,095.3
Property, plant and equipment, net	0	0
Intangible assets, net	0	0
Other noncurrent assets	0	0
Total assets	10,145.8	10,134.5
Current liabilities:
Accounts payable and accruals	0	0
Short-term borrowings and current maturities of long-term debt	0	0
Accounts and note payable affiliates	34.3	34.3
Total current liabilities	34.3	34.3
Long-term debt	0	0
Note payable affiliate	0	0
Other noncurrent liabilities	0	4.3
Total liabilities	34.3	38.6
Equity:
Total equity	10,111.5	10,095.9
Total liabilities and equity	10,145.8	10,134.5
IR International [Member]
Current assets:
Cash and cash equivalents	0	0	0	0
Accounts and notes receivable, net	0	0
Inventories	0	0
Other current assets	1.5	0.1
Accounts and notes receivable affiliates	2.2	2.0
Total current assets	3.7	2.1
Investment in affiliates	21,294.2	21,185.6
Property, plant and equipment, net	0	0
Intangible assets, net	0	0
Other noncurrent assets	0.4	0.5
Total assets	21,298.3	21,188.2
Current liabilities:
Accounts payable and accruals	6.2	4.0
Short-term borrowings and current maturities of long-term debt	0	0
Accounts and note payable affiliates	4,900.1	4,888.9
Total current liabilities	4,906.3	4,892.9
Long-term debt	299.7	299.7
Note payable affiliate	10,755.7	10,755.7
Other noncurrent liabilities	3.8	3.8
Total liabilities	15,965.5	15,952.1
Equity:
Total equity	5,332.8	5,236.1
Total liabilities and equity	21,298.3	21,188.2
IR Global [Member]
Current assets:
Cash and cash equivalents	0	61.9	120.8	241.8
Accounts and notes receivable, net	0	0
Inventories	0	0
Other current assets	0	0.2
Accounts and notes receivable affiliates	2,174.9	2,189.0
Total current assets	2,174.9	2,251.1
Investment in affiliates	18,734.2	18,589.8
Property, plant and equipment, net	0.2	0.2
Intangible assets, net	0	0
Other noncurrent assets	9.1	10.0
Total assets	20,918.4	20,851.1
Current liabilities:
Accounts payable and accruals	50.5	46.0
Short-term borrowings and current maturities of long-term debt	600.0	600.0
Accounts and note payable affiliates	7,579.2	7,602.2
Total current liabilities	8,229.7	8,248.2
Long-term debt	1,404.4	1,404.4
Note payable affiliate	0	0
Other noncurrent liabilities	0	0
Total liabilities	9,634.1	9,652.6
Equity:
Total equity	11,284.3	11,198.5
Total liabilities and equity	20,918.4	20,851.1
IR New Jersey [Member]
Current assets:
Cash and cash equivalents	91.4	59.1	203.0	77.8
Accounts and notes receivable, net	132.1	128.8
Inventories	83.4	73.1
Other current assets	112.2	149.3
Accounts and notes receivable affiliates	9,226.0	8,669.5
Total current assets	9,645.1	9,079.8
Investment in affiliates	8,223.0	8,179.9
Property, plant and equipment, net	264.7	254.0
Intangible assets, net	83.8	83.8
Other noncurrent assets	834.9	867.3
Total assets	19,051.5	18,464.8
Current liabilities:
Accounts payable and accruals	405.6	420.2
Short-term borrowings and current maturities of long-term debt	350.5	350.5
Accounts and note payable affiliates	14,006.9	13,337.7
Total current liabilities	14,763.0	14,108.4
Long-term debt	364.7	364.7
Note payable affiliate	0	0
Other noncurrent liabilities	1,604.6	1,620.0
Total liabilities	16,732.3	16,093.1
Equity:
Total equity	2,319.2	2,371.7
Total liabilities and equity	19,051.5	18,464.8
Other Subsidiaries [Member]
Current assets:
Cash and cash equivalents	741.5	761.1	765.7	841.1
Accounts and notes receivable, net	2,086.7	2,028.7
Inventories	1,382.9	1,235.7
Other current assets	485.3	444.6
Accounts and notes receivable affiliates	24,539.9	23,772.0
Total current assets	29,236.3	28,242.1
Investment in affiliates	99,870.5	99,205.0
Property, plant and equipment, net	1,388.1	1,398.4
Intangible assets, net	10,178.1	10,256.0
Other noncurrent assets	716.6	680.0
Total assets	141,389.6	139,781.5
Current liabilities:
Accounts payable and accruals	2,736.0	2,656.9
Short-term borrowings and current maturities of long-term debt	14.6	13.2
Accounts and note payable affiliates	10,556.4	9,867.6
Total current liabilities	13,307.0	12,537.7
Long-term debt	202.3	200.5
Note payable affiliate	0	0
Other noncurrent liabilities	3,195.4	3,204.9
Total liabilities	16,704.7	15,943.1
Equity:
Total equity	124,684.9	123,838.4
Total liabilities and equity	141,389.6	139,781.5
Consolidating Adjustments [Member]
Current assets:
Cash and cash equivalents	0	0	0	0
Accounts and notes receivable, net	0	0
Inventories	0	0
Other current assets	0	0
Accounts and notes receivable affiliates	(39,287.1)	(37,820.6)
Total current assets	(39,287.1)	(37,820.6)
Investment in affiliates	(164,146.3)	(163,140.7)
Property, plant and equipment, net	0	0
Intangible assets, net	0	0
Other noncurrent assets	0	0
Total assets	(203,433.4)	(200,961.3)
Current liabilities:
Accounts payable and accruals	0	0
Short-term borrowings and current maturities of long-term debt	0	0
Accounts and note payable affiliates	(38,945.0)	(37,465.0)
Total current liabilities	(38,945.0)	(37,465.0)
Long-term debt	0	0
Note payable affiliate	(10,755.7)	(10,755.7)
Other noncurrent liabilities	0	0
Total liabilities	(49,700.7)	(48,220.7)
Equity:
Total equity	(153,732.7)	(152,740.6)
Total liabilities and equity	$ (203,433.4)	$ (200,961.3)