Condensed Consolidated Statement of Changes in Equity Statement - USD ($) shares in Thousands, $ in Millions	Total	Raytheon Company [Member]	Common Stock [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Retained Earnings [Member] Carrier [Member]	Deferred Compensation, Share-based Payments [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 40,610
Stockholders' Equity Attributable to Parent			$ 22,514	$ (32,482)	$ 57,823		$ (76)	$ (9,333)
Noncontrolling interest									$ 2,164
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture			211	4			5
Stock Issued During Period, Value, Acquisitions			0	0
Stockholders' Equity Note, Spinoff Transaction			0			$ 0		0	0
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests			0						(1)
Noncontrolling Interest, Change in Redemption Value			(7)		(7)
Treasury Stock, Value, Acquired, Cost Method				71
Net income attributable to common shareowners	3,246				3,246
Dividends, Common Stock					1,219
Employee Stock Ownership Plan (ESOP), Dividends Paid to ESOP					36
Reclassification to Retained Earnings, current period, ASU 2018-02 adoption impact					745
Stockholders' Equity, Other					(4)				0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent								186
ASU 2018-02 adoption impact	$ (745)							(745)
Net Income (Loss) Attributable to Noncontrolling Interest									178
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest									5
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest									4
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders									145
Noncontrolling Interest, Increase from Capital Contributions									18
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture	1,827
Stock Repurchased During Period, Shares	553
Stock Issued During Period, Shares, Acquisitions		0
Common Stock, Dividends, Per Share, Declared	$ 1.470
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 41,946
Stockholders' Equity Attributable to Parent			22,564	(32,511)	59,279		(75)	(9,519)
Noncontrolling interest									2,208
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture			154	1			4
Stock Issued During Period, Value, Acquisitions			0	0
Stockholders' Equity Note, Spinoff Transaction			0			0		0	0
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests			0						(1)
Noncontrolling Interest, Change in Redemption Value			0		(11)
Treasury Stock, Value, Acquired, Cost Method				39
Net income attributable to common shareowners	$ 1,900				1,900
Dividends, Common Stock					610
Employee Stock Ownership Plan (ESOP), Dividends Paid to ESOP					18
Reclassification to Retained Earnings, current period, ASU 2018-02 adoption impact					0
Stockholders' Equity, Other					8				(3)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent								(373)
ASU 2018-02 adoption impact								0
Net Income (Loss) Attributable to Noncontrolling Interest									99
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest									2
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest									1
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders									101
Noncontrolling Interest, Increase from Capital Contributions									18
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture	799
Stock Repurchased During Period, Shares	297
Stock Issued During Period, Shares, Acquisitions		0
Common Stock, Dividends, Per Share, Declared	$ 0.740
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 42,977
Stockholders' Equity Attributable to Parent			22,718	(32,549)	60,548		(71)	(9,892)
Noncontrolling interest									2,223
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	44,231
Stockholders' Equity Attributable to Parent	41,774		23,019	(32,626)	61,594		(64)	(10,149)
Noncontrolling interest	2,457								2,457
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture			221	2			8
Stock Issued During Period, Value, Acquisitions			10,897	22,269
Stockholders' Equity Note, Spinoff Transaction			2,598			(5,805)		3,875	(865)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests			0						66
Noncontrolling Interest, Change in Redemption Value			0		0
Treasury Stock, Value, Acquired, Cost Method				43
Net income attributable to common shareowners	$ (3,918)				(3,918)
Dividends, Common Stock					2,041
Employee Stock Ownership Plan (ESOP), Dividends Paid to ESOP					27
Reclassification to Retained Earnings, current period, ASU 2018-02 adoption impact					0
Stockholders' Equity, Other					(59)				0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent								(2,526)
ASU 2018-02 adoption impact								0
Net Income (Loss) Attributable to Noncontrolling Interest									121
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest									(1)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest									0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders									80
Noncontrolling Interest, Increase from Capital Contributions									(31)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture	1,907
Stock Repurchased During Period, Shares	330
Stock Issued During Period, Shares, Acquisitions		652,638
Common Stock, Dividends, Per Share, Declared	$ 1.210
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 41,935
Stockholders' Equity Attributable to Parent			23,099	(32,665)	60,826		(61)	(11,788)
Noncontrolling interest									2,524
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture			140	(2)			5
Stock Issued During Period, Value, Acquisitions			10,897	22,269
Stockholders' Equity Note, Spinoff Transaction			2,598			$ (5,805)		3,875	(865)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests			1						66
Noncontrolling Interest, Change in Redemption Value			0		(1)
Treasury Stock, Value, Acquired, Cost Method				0
Net income attributable to common shareowners	$ (3,835)				(3,835)
Dividends, Common Stock					1,427
Employee Stock Ownership Plan (ESOP), Dividends Paid to ESOP					10
Reclassification to Retained Earnings, current period, ASU 2018-02 adoption impact					0
Stockholders' Equity, Other					(4)				0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent								(887)
ASU 2018-02 adoption impact								0
Net Income (Loss) Attributable to Noncontrolling Interest									24
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest									(1)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest									6
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders									22
Noncontrolling Interest, Increase from Capital Contributions									(65)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture	(142)
Stock Repurchased During Period, Shares	0
Stock Issued During Period, Shares, Acquisitions		652,638
Common Stock, Dividends, Per Share, Declared	$ 0.475
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 68,892
Stockholders' Equity Attributable to Parent	67,225		$ 36,735	$ (10,398)	$ 49,744		$ (56)	$ (8,800)
Noncontrolling interest	$ 1,667								$ 1,667