Equity (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended | | |
|---|
Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2011 | Sep. 30, 2010 | Jun. 29, 2011 | Jun. 23, 2011 |
|---|
| Share repurchases | | | | | | |
| Total number of shares purchased | 9.0 | 2.2 | 16.7 | 8.7 | | |
| Average price paid per share | $ 39.40 | $ 31.14 | $ 39.20 | $ 29.37 | | |
| Total cash utilized | $ 354.7 | $ 69.0 | $ 655.0 | $ 255.8 | | |
| Reconciliation of net income to comprehensive income | | | | | | |
| Net income | 373.9 | 389.7 | 713.8 | 690.9 | | |
| Other comprehensive income, net of tax: | | | | | | |
| Foreign currency translation adjustment | (57.1) | 24.1 | (23.3) | 4.1 | | |
| Pension and other postretirement benefit plans | 4.6 | 2.1 | 19.1 | 10.8 | | |
| Unrealized loss on investment and forward exchange contracts | (0.1) | (0.1) | (6.2) | (0.3) | | |
| Comprehensive income | 321.3 | 415.8 | 703.4 | 705.5 | | |
| Less: comprehensive income attributable to NCI | (1.8) | (10.0) | (12.3) | (19.2) | | |
| Comprehensive income attributable to the Company | 319.5 | 405.8 | 691.1 | 686.3 | | |
| Equity (Textuals) [Abstract] | | | | | | |
| Stock repurchase program number of shares authorized to be repurchased | 45.0 | | 45.0 | | 50.0 | |
| Maximum number of shares authorized for repurchase under stock repurchase plan as percentage of outstanding common stock | | | | | 17.00% | |
| Treasury stock shares acquired under repurchase program | | | | | | 2.5 |
| Percentage of discount from closing price of shares repurchased | | | | | | 1.375% |
| Amount paid for share repurchase under 2007 repurchase program | | | | | | 97.0 |
| Treasury Stock acquired, average cost per share without discounted Repurchase | | | $ 39.14 | | | |
| Settlement amount of shares repurchased | $ 19.4 | | | | | |
| Stock Repurchase (Textuals) [Line Items] | | | | | | |
| Number of shares repurchased | 0.5 | | | | | |
2007 Repurchase Program [Member] | | | | | | |
| Stock Repurchase (Textuals) [Line Items] | | | | | | |
| Number of shares repurchased | 0.7 | | 8.4 | | | |
| Remaining shares available under repurchase program | 0 | | 0 | | | |
2011 Repurchase Program [Member] | | | | | | |
| Stock Repurchase (Textuals) [Line Items] | | | | | | |
| Number of shares repurchased | 8.3 | | 8.3 | | | |
| Remaining shares available under repurchase program | 41.7 | | 41.7 | | | |