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Financing Arrangements - Narrative (Details)
3 Months Ended
Mar. 01, 2017
USD ($)
Jul. 15, 2016
USD ($)
Jun. 15, 2016
USD ($)
May 17, 2016
USD ($)
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Mar. 31, 2017
EUR (€)
Mar. 31, 2017
BRL
Mar. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Nov. 02, 2016
EUR (€)
Nov. 02, 2016
USD ($)
May 23, 2016
USD ($)
Debt Instrument [Line Items]                          
Repayments of long-term debt         $ 255,000,000 $ 5,000,000              
Letter of Credit Subfacility Maturing 2017                          
Debt Instrument [Line Items]                          
Line of credit facility, maximum borrowing capacity               BRL 1,000,000,000 $ 316,000,000 $ 307,000,000      
Line of Credit | Revolving Credit Facility                          
Debt Instrument [Line Items]                          
Line of credit facility, maximum borrowing capacity                 0 0      
Line of Credit | Foreign Line of Credit                          
Debt Instrument [Line Items]                          
Line of credit facility, maximum borrowing capacity             € 250,000,000   267,000,000 263,000,000      
Senior note - 1.35% maturing 2017                          
Debt Instrument [Line Items]                          
Repayments of long-term debt $ 250,000,000                        
Debt instrument, interest rate, stated percentage 1.35%                        
Debentures—7.75%, maturing 2016 | Senior Notes                          
Debt Instrument [Line Items]                          
Repayments of long-term debt   $ 244,000,000                      
Debt instrument, interest rate, stated percentage   7.75%                      
Senior note—6.5%, maturing 2016 | Senior Notes                          
Debt Instrument [Line Items]                          
Repayments of long-term debt     $ 250,000,000                    
Debt instrument, interest rate, stated percentage     6.50%                    
Debt instrument, redemption price, percentage         101.00%                
Notes Maturing 2046, 4.5 Percent Interest Rate | Senior Notes                          
Debt Instrument [Line Items]                          
Debt instrument, interest rate, stated percentage                         4.50%
Debt instrument, face amount                         $ 500,000,000
Notes Maturing 2026, 1.250 Percent Interest Rate | Senior Notes                          
Debt Instrument [Line Items]                          
Debt instrument, interest rate, stated percentage                     1.25% 1.25%  
Debt instrument, redemption price, percentage         101.00%                
Debt instrument, face amount                     € 500,000,000 $ 555,000,000  
Third Amended and Restated Long-Term Credit Agreement | Line of Credit | Revolving Credit Facility                          
Debt Instrument [Line Items]                          
Line of credit facility, maximum borrowing capacity       $ 2,500,000,000.0         $ 2,500,000,000.0 $ 0      
Line of credit facility, commitment fee percentage       0.125%                  
Ratio of indebtedness to net capital       0.60                  
Debt instrument, covenant, rolling twelve month coverage ratio, minimum       3.0                  
London Interbank Offered Rate (LIBOR) | Third Amended and Restated Long-Term Credit Agreement | Line of Credit | Revolving Credit Facility                          
Debt Instrument [Line Items]                          
Debt Instrument, basis spread on variable rate       1.125%                  
Prime Rate | Third Amended and Restated Long-Term Credit Agreement | Line of Credit | Revolving Credit Facility                          
Debt Instrument [Line Items]                          
Debt Instrument, basis spread on variable rate       0.125%