Employee Benefit Plans (Changes In Defined Benefit Obligation And Fair Value Of Defined Benefit Plan Assets) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2012	Jun. 30, 2011
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation, beginning				$ 208
Remeasurement charge				0	34	34
Benefit obligation, ending		208			208
Fair value of plan assets, beginning				2,174
Fair value of plan assets, ending	2,341	2,174		2,341	2,174
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation, beginning		3,095		2,954
Service cost		44	36	84	79	71	71
Interest cost		61	65	114	126	130	120
Actuarial loss (gain)		(4)		(236)
Employee contributions		1		2
Curtailments		(12)		0
Settlements		(204)		0
Remeasurement charge					30	30	0
Benefits paid		(53)		(119)
Plan Amendments				(1)
Actual expenses		(1)		(2)
Foreign currency effects		27		18
Benefit obligation, ending	2,814	2,954		2,814	2,954	3,095
Fair value of plan assets, beginning		2,236		2,174
Actual return on plan assets		161		222
Employer contributions		31		50
Settlements		(224)		0
Foreign currency effects		23		14
Fair value of plan assets, ending	2,341	2,174		2,341	2,174	2,236
Funded status	(473)	(780)		(473)	(780)
Prepaid benefit cost	63	52		63	52
Accrued benefit liability - current	(15)	(14)		(15)	(14)
Accrued benefit liability - long-term	(521)	(818)		(521)	(818)
Net amount recognized in the balance sheet	(473)	(780)		(473)	(780)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation, beginning		305		208
Service cost		4	3	5	8	7	8
Interest cost		6	6	7	12	12	13
Actuarial loss (gain)		7		(34)
Remeasurement charge					4	4	0
Benefits paid		(5)		(12)
Plan Amendments	0	(109)
Benefit obligation, ending	174	208		174	208	305
Employer contributions		5		12
Funded status	(174)	(208)		(174)	(208)
Accrued benefit liability - current	(11)	(13)		(11)	(13)
Accrued benefit liability - long-term	(163)	(195)		(163)	(195)
Net amount recognized in the balance sheet	$ (174)	$ (208)		$ (174)	$ (208)