Exit, Disposal And Other Restructuring Activities (2012 Actions Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Dec. 31, 2011	Jan. 01, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 5	$ 33	$ 23	$ 36
Restructuring 2012 Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			196
Planned employee terminations			420
Employee terminations			170
Minimum [Member] | Restructuring 2012 Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges expected to be recognized			525
Maximum [Member] | Restructuring 2012 Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges expected to be recognized			550
Exit, Disposal And Other Restructuring Actions [Member] | Minimum [Member] | Restructuring 2012 Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges expected to be recognized			480
Exit, Disposal And Other Restructuring Actions [Member] | Maximum [Member] | Restructuring 2012 Actions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges expected to be recognized			$ 505