CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 3,329,000,000	$ 2,882,000,000	$ 2,001,000,000
Pension and other postretirement benefit plans, net:
Prior service cost arising during period	(1,000,000)	(10,000,000)	(15,000,000)
Amortization of prior service cost	5,000,000	6,000,000	4,000,000
Actuarial loss arising during period	(1,886,000,000)	(626,000,000)	(1,816,000,000)
Amortization of net actuarial loss	1,060,000,000	1,362,000,000	1,187,000,000
Loss due to settlements	3,000,000	287,000,000	3,000,000
Effect of exchange rates	(3,000,000)	9,000,000	(14,000,000)
Pension and other postretirement benefit plans, net	(822,000,000)	1,028,000,000	(651,000,000)
Foreign exchange translation	7,000,000	(36,000,000)	80,000,000
Cash flow hedges	4,000,000	(12,000,000)	10,000,000
Unrealized gains (losses) on investments and other, net	(3,000,000)	1,000,000	(1,000,000)
Other comprehensive income (loss), before tax	(814,000,000)	981,000,000	(562,000,000)
Income tax benefit (expense) related to items of other comprehensive income (loss)	172,000,000	(213,000,000)	38,000,000
Other comprehensive income (loss), net of tax	(642,000,000)	768,000,000	(524,000,000)
Reclassification of stranded tax effects	0	(1,451,000,000)	0
Total comprehensive income (loss)	2,687,000,000	2,199,000,000	1,477,000,000
Less: Comprehensive income (loss) attributable to noncontrolling interests in subsidiaries	(14,000,000)	(27,000,000)	(23,000,000)
Comprehensive income (loss) attributable to Raytheon Company	$ 2,701,000,000	$ 2,226,000,000	$ 1,500,000,000