XML 132 R96.htm IDEA: XBRL DOCUMENT v3.8.0.1
Financial Instruments (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis, Alternative [Abstract]    
Fair value of contingent consideration at December 31, 2016 $ 50  
Additions: contingent consideration completed during the period 7  
Reduction: payment of contingent consideration (22)  
Changes in fair value (1)  
Fair value of contingent consideration at December 31, 2017 34  
Deferred Compensation Plan Assets [Member] | Fair Value Measurements Recurring Member    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Deferred compensation plan assets (included in other non-current assets) 3 $ 3
Deferred Compensation Plan Assets [Member] | Fair Value Measurements Recurring Member | Level I    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Deferred compensation plan assets (included in other non-current assets) 3 3
Deferred Compensation Plan Assets [Member] | Fair Value Measurements Recurring Member | Level II    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Deferred compensation plan assets (included in other non-current assets) 0 0
Deferred Compensation Plan Assets [Member] | Fair Value Measurements Recurring Member | Level III    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Deferred compensation plan assets (included in other non-current assets) 0 0
Contingent Consideration for Acquisitions [Member] | Fair Value Measurements Recurring Member    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Liabilities, Fair Value Disclosure 34 50
Contingent Consideration for Acquisitions [Member] | Fair Value Measurements Recurring Member | Level I    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Liabilities, Fair Value Disclosure 0 0
Contingent Consideration for Acquisitions [Member] | Fair Value Measurements Recurring Member | Level II    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Liabilities, Fair Value Disclosure 0 0
Contingent Consideration for Acquisitions [Member] | Fair Value Measurements Recurring Member | Level III    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Other Liabilities, Fair Value Disclosure 34 50
Interest rate swap contracts | Fair Value Measurements Recurring Member    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swaps (included in other current and non-current liabilities) 13 33
Interest rate swap contracts | Fair Value Measurements Recurring Member | Level I    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swaps (included in other current and non-current liabilities) 0 0
Interest rate swap contracts | Fair Value Measurements Recurring Member | Level II    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swaps (included in other current and non-current liabilities) 13 33
Interest rate swap contracts | Fair Value Measurements Recurring Member | Level III    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swaps (included in other current and non-current liabilities) $ 0 $ 0