Condensed Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Statement of Comprehensive Income [Abstract]
Net earnings	$ 115	$ 148	$ 333	$ 1,099
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(16)	(34)	(35)	(19)
Derivative instruments			0	1
Marketable securities	(5)	0	(34)	2
Defined benefit plans	0	(345)	(82)	(322)
Total other comprehensive loss, net of tax	(21)	(379)	(151)	(338)
Comprehensive income	94	(231)	182	761
Less: Earnings attributable to noncontrolling interests	0	1	2	1
Comprehensive income attributable to Motorola Solutions, Inc. common shareholders	$ 94	$ (232)	$ 180	$ 760