Restructuring and Asset Impairment Charges, Net (Details 3) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 25, 2016	Mar. 27, 2015	Mar. 25, 2016	Mar. 27, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	$ 5	$ 12	$ 17	$ 70
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period			155
Balance at the end of the period	125		125
2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	6	0	15	0
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period			0
Charges			15
Reversals			(1)
Utilization			(7)
Balance at the end of the period	7		7
Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	(2)	9	1	58
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period			117
Charges			6
Reversals			(5)
Utilization			(31)
Translation Adjustment			(1)
Balance at the end of the period	86		86
2014 and prior actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	1	3	1	12
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period			38
Charges		3	1	12
Utilization	(4)	(13)	(10)	(29)
Balance at the end of the period	32		32
Employee Severance and Benefits | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	5		13
Employee Severance and Benefits | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	(2)		1	53
Facility Exit and Other Charges | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			1
Facility Exit and Other Charges | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions				5
NA Installation & Services | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			2
NA Installation & Services | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		4		26
NA Installation & Services | Employee Severance and Benefits | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			2
NA Installation & Services | Employee Severance and Benefits | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	(1)		1	26
NA Installation & Services | Facility Exit and Other Charges | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			0
NA Installation & Services | Facility Exit and Other Charges | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions				0
ROW Installation & Services | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	2		3
ROW Installation & Services | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		4		19
ROW Installation & Services | Employee Severance and Benefits | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	2		3
ROW Installation & Services | Employee Severance and Benefits | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	0			14
ROW Installation & Services | Facility Exit and Other Charges | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			0
ROW Installation & Services | Facility Exit and Other Charges | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions				5
Global Products | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	3		6
Global Products | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		1		3
Global Products | Employee Severance and Benefits | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	2		4
Global Products | Employee Severance and Benefits | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	0			3
Global Products | Facility Exit and Other Charges | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			1
Global Products | Facility Exit and Other Charges | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions				0
Corporate and Other [Member] | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	1		4
Corporate and Other [Member] | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		$ 0		10
Corporate and Other [Member] | Employee Severance and Benefits | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	1		4
Corporate and Other [Member] | Employee Severance and Benefits | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	$ (1)			10
Corporate and Other [Member] | Facility Exit and Other Charges | 2016 Actions
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			$ 0
Corporate and Other [Member] | Facility Exit and Other Charges | Program 2015
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions				$ 0