Consolidated Statement of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,300	$ 1,105	$ 881
Other comprehensive income (loss):
Amortization of retirement benefit adjustments, net of tax of $17, $40, and $99	44	70	177
Mid-year remeasurement of retirement benefit adjustments and other amendment, net of tax of $(294), $-, and $52	(353)	0	87
Year-end remeasurement of retirement benefit adjustments, net of tax of $(153), $571, and $(419)	(365)	953	(707)
Pension settlement adjustment, net of tax of $715	1,168	0	0
Foreign currency translation adjustment, net of tax of $(9), $(7), and $(4)	(49)	(4)	14
Net gain (loss) on derivative hedging instruments, net of tax of $-, $1, and $(1)	1	(2)	4
Net unrealized gain (loss) on securities, net of tax of $26, $1, and $1	46	(4)	1
Disposition of the Enterprise business, net of tax of ($16)	(60)	0	0
Total other comprehensive income (loss)	432	1,013	(424)
Comprehensive income	1,732	2,118	457
Less: Earnings attributable to noncontrolling interests	1	6	0
Comprehensive income attributable to Motorola Solutions, Inc. common shareholders	$ 1,731	$ 2,112	$ 457