Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Performance Bonds and Parent Guarantees (Details)

v3.19.2
Commitments and Contingencies - Performance Bonds and Parent Guarantees (Details) - Performance Bonds
$ in Millions
Jun. 30, 2019
USD ($)
Guarantor Obligations [Line Items]  
Total amount of outstanding performance bonds $ 2,600
Estimate  
Guarantor Obligations [Line Items]  
Estimated cost to complete bonded projects $ 759