Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors (Schedule of Unapproved Change Orders and Claims) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Unapproved Change Orders [Roll Forward]
Amounts included in project estimates-at-completion at January 1,	$ 1,048	$ 978
(Decrease) increase in project estimates	(228)	(1)
Approved change orders	(374)	(6)
Foreign currency impact	(20)	77
Amounts included in project estimates-at-completion at December 31,	426	1,048
Amounts recognized over time based on progress	$ 426	$ 1,048

Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors (Schedule of Unapproved Change Orders and Claims) (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2021

Dec. 31, 2020

Unapproved Change Orders [Roll Forward]

Amounts included in project estimates-at-completion at January 1,

$ 1,048

$ 978

(Decrease) increase in project estimates

(228)

(1)

Approved change orders

(374)