Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Details Textual)		1 Months Ended			3 Months Ended		9 Months Ended
	Apr. 26, 2015 USD ($)	Jun. 30, 2015 $ / shares	Mar. 31, 2015 $ / shares	Dec. 31, 2014 $ / shares	Jul. 26, 2015 USD ($) shares	Jul. 27, 2014 USD ($) shares	Jul. 26, 2015 USD ($) employee_stock_purchase_plans shares	Jul. 27, 2014 USD ($) employee_stock_purchase_plans shares
Equity [Line Items]
Other comprehensive loss, net of tax					$ 7,000,000	$ (1,000,000)	$ (42,000,000)	$ (4,000,000)
Amount authorized by board of directors to repurchase shares	$ 3,000,000,000.0
Period of stock repurchase program	3 years
Remaining authorized repurchase amount					2,400,000,000		2,400,000,000
Dividends declared per share (in dollars per share) | $ / shares		$ 0.10	$ 0.10	$ 0.10
Dividend declared, amount							$ 366,000,000	$ 365,000,000
Number of employee stock purchase plans | employee_stock_purchase_plans							2
Employee Stock [Member]
Equity [Line Items]
Purchase price of common stock, percent							85.00%
Purchase period							6 months
Number of shares issued under the ESPP | shares							2,000,000	3,000,000
Employee Stock [Member]
Equity [Line Items]
Total unrecognized compensation expense					$ 289,000,000		$ 289,000,000
Weighted average period for unrecognized compensation expense to be recognized (in years)							2 years 7 months 6 days
Number of shares available for grant (in shares) | shares					168,000,000		168,000,000
Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units [Member] | Certain Executive Officers [Member]
Equity [Line Items]
Measurement period for achieving TSR goals							2 years
Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units [Member] | Certain Executive Officers [Member] | Minimum [Member]
Equity [Line Items]
Vesting period for performance-based awards							3 years
Restricted Stock Units, Restricted Stock, Performance Shares and Performance Units [Member] | Certain Executive Officers [Member] | Maximum [Member]
Equity [Line Items]
Vesting period for performance-based awards							4 years
Employee Stock Purchase Plan, United States [Member]
Equity [Line Items]
Number of employee stock purchase plans | employee_stock_purchase_plans							1
Employee Stock Purchase Plan, International [Member]
Equity [Line Items]
Number of employee stock purchase plans | employee_stock_purchase_plans								1
Employee Stock Purchase Plan [Member]
Equity [Line Items]
Number of shares available for grant (in shares) | shares					32,000,000		32,000,000
Treasury Stock [Member]
Equity [Line Items]
Common stock repurchases (in shares) | shares					32,000,000	0	32,000,000	0
Defined and Postretirement Benefit Plans [Member]
Equity [Line Items]
Other comprehensive loss, net of tax							$ (43,000,000)	$ 0