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Products And Services Revenues (Schedule Of Operating Revenues By Category) (Details) (USD $)
In Millions
3 Months Ended6 Months Ended3 Months Ended9 Months Ended3 Months Ended6 Months Ended3 Months Ended9 Months Ended3 Months Ended6 Months Ended3 Months Ended9 Months Ended3 Months Ended6 Months Ended3 Months Ended9 Months Ended3 Months Ended6 Months Ended3 Months Ended9 Months Ended
Sep. 30, 2011
Strategic Services [Member]
Successor [Member]
Sep. 30, 2011
Strategic Services [Member]
Successor [Member]
Mar. 31, 2011
Strategic Services [Member]
Predecessor [Member]
Sep. 30, 2010
Strategic Services [Member]
Predecessor [Member]
Sep. 30, 2010
Strategic Services [Member]
Predecessor [Member]
Sep. 30, 2011
Legacy Services [Member]
Successor [Member]
Sep. 30, 2011
Legacy Services [Member]
Successor [Member]
Mar. 31, 2011
Legacy Services [Member]
Predecessor [Member]
Sep. 30, 2010
Legacy Services [Member]
Predecessor [Member]
Sep. 30, 2010
Legacy Services [Member]
Predecessor [Member]
Sep. 30, 2011
Data Integration [Member]
Successor [Member]
Sep. 30, 2011
Data Integration [Member]
Successor [Member]
Mar. 31, 2011
Data Integration [Member]
Predecessor [Member]
Sep. 30, 2010
Data Integration [Member]
Predecessor [Member]
Sep. 30, 2010
Data Integration [Member]
Predecessor [Member]
Sep. 30, 2011
Affiliates And Other Services [Member]
Successor [Member]
Sep. 30, 2011
Affiliates And Other Services [Member]
Successor [Member]
Mar. 31, 2011
Affiliates And Other Services [Member]
Predecessor [Member]
Sep. 30, 2010
Affiliates And Other Services [Member]
Predecessor [Member]
Sep. 30, 2010
Affiliates And Other Services [Member]
Predecessor [Member]
Sep. 30, 2011
Successor [Member]
Sep. 30, 2011
Successor [Member]
Mar. 31, 2011
Predecessor [Member]
Sep. 30, 2010
Predecessor [Member]
Sep. 30, 2010
Predecessor [Member]
Operating revenues by category:                         
Operating revenues$ 1,205$ 2,410$ 1,201$ 1,172$ 3,459$ 1,284$ 2,602$ 1,395$ 1,479$ 4,536$ 134$ 252$ 123$ 158$ 436     $ 2,744$ 5,507$ 2,846$ 2,935$ 8,831
Operating revenue-affiliates               1422701271264002127   
Total operating revenue                    $ 2,765$ 5,534$ 2,846$ 2,935$ 8,831