Restructuring Reserve by Type of Costs (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	9 Months Ended	24 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Jun. 30, 2013
Restructuring Reserve [Roll Forward]
Beginning accrual balance		$ 323	$ 323
Charges Previously Reported	212	302	514	2,000
Cash Spent			(374)
Charges Against Assets			(119)
Ending accrual balance	344		344	323
Separations
Restructuring Reserve [Roll Forward]
Beginning accrual balance		296	296
Charges Previously Reported	99	127		1,100
Cash Spent			(202)
Charges Against Assets			0
Ending accrual balance	320		320	296
Asset-Related Costs
Restructuring Reserve [Roll Forward]
Beginning accrual balance		0	0
Charges Previously Reported	53	66		487
Cash Spent			0
Charges Against Assets			(119)
Ending accrual balance	0		0	0
Other Costs
Restructuring Reserve [Roll Forward]
Beginning accrual balance		27	27
Charges Previously Reported	60	109		431
Cash Spent			(172)
Charges Against Assets			0
Ending accrual balance	$ 24		$ 24	$ 27