CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net earnings	$ 4	$ 114	$ 313	$ 552
Other comprehensive income (loss):
Foreign currency translation adjustment—net of taxes	41	(32)	(30)	(8)
Defined benefit plans—net of taxes	(3)	2	8	5
Total other comprehensive income	38	(30)	(22)	(3)
Comprehensive income	42	84	291	549
Less: Comprehensive income attributable to noncontrolling interest	32	49	83	114
Comprehensive income attributable to common stockholders	$ 10	$ 35	$ 208	$ 435