XML 339 R151.htm IDEA: XBRL DOCUMENT v3.19.1
Financial Instruments - Summary of Changes in Foreign Exchange Rates (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Trade accounts receivable:      
Trade accounts receivable $ 318.0 $ 297.0  
Without the effect of derivative transactions [member]      
Loans and financing      
Loans and financing 3,647.7 4,198.5 $ 3,759.9
Trade accounts payable      
Trade accounts payable 892.1 824.7 952.1
Total 4,539.8 5,023.2 4,712.0
Cash and cash equivalents and financial investments      
Cash and cash equivalents and financial investments 3,207.9 3,888.1 3,190.2
Trade accounts receivable:      
Trade accounts receivable 318.0 297.0 336.8
Total 3,525.9 4,185.1 3,527.0
Brazil, Brazil Real [member] | Without the effect of derivative transactions [member]      
Loans and financing      
Loans and financing 286.5 629.0 832.9
Trade accounts payable      
Trade accounts payable 77.1 87.6 91.9
Cash and cash equivalents and financial investments      
Cash and cash equivalents and financial investments 406.5 750.2 1,180.0
Trade accounts receivable:      
Trade accounts receivable 10.7 30.8 143.4
Net exposure (1-2):      
Net exposure (53.6) (64.4) (398.6)
United States of America, Dollars [member] | Without the effect of derivative transactions [member]      
Loans and financing      
Loans and financing 3,341.6 3,555.5 2,910.7
Trade accounts payable      
Trade accounts payable 715.6 621.0 783.2
Cash and cash equivalents and financial investments      
Cash and cash equivalents and financial investments 2,746.9 2,979.2 1,838.3
Trade accounts receivable:      
Trade accounts receivable 274.2 154.1 187.7
Net exposure (1-2):      
Net exposure 1,036.1 1,043.2 1,667.9
Euro Member Countries, Euro [member] | Without the effect of derivative transactions [member]      
Loans and financing      
Loans and financing 19.6 14.0 16.3
Trade accounts payable      
Trade accounts payable 27.2 115.0 75.3
Cash and cash equivalents and financial investments      
Cash and cash equivalents and financial investments 47.7 97.5 127.1
Trade accounts receivable:      
Trade accounts receivable 33.1 106.1 5.6
Net exposure (1-2):      
Net exposure (34.0) (74.6) (41.1)
Other currencies [member] | Without the effect of derivative transactions [member]      
Trade accounts payable      
Trade accounts payable 72.2 1.1 1.7
Cash and cash equivalents and financial investments      
Cash and cash equivalents and financial investments 6.8 61.2 44.8
Trade accounts receivable:      
Trade accounts receivable   6.0 0.1
Net exposure (1-2):      
Net exposure $ 65.4 $ (66.1) $ (43.2)