XML 105 R83.htm IDEA: XBRL DOCUMENT v3.19.3
Contingencies (Guarantees and Other Similar Matters Narrative) (Details) - USD ($)
9 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Loss Contingencies [Line Items]    
Contingent liability related to performance surety bonds $ 27,000,000  
Redeemable noncontrolling interest 39,000,000 $ 39,000,000
Letter of Credit [Member]    
Loss Contingencies [Line Items]    
Credit line available under the agreement 51,000,000  
Revolving Credit Facility [Member] | Credit Agreement [Member]    
Loss Contingencies [Line Items]    
Credit line available under the agreement $ 3,000,000,000.0  
Debt instrument, term 5 years