Long-Term Debt And Borrowing Arrangements (Schedule Of Committed Credit Facilities) (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014
Revolving Credit Facility Maturing Two Thousand Sixteen [Member]
Line of Credit Facility [Line Items]
Total Capacity	$ 1,650	[1]
Outstanding Borrowings	0	[1]
Letters of Credit Issued	638	[1]
Available Capacity	1,012	[1]
Other Facilities [Member]
Line of Credit Facility [Line Items]
Total Capacity	13	[2]
Outstanding Borrowings	1	[2]
Letters of Credit Issued	0	[2]
Available Capacity	$ 12	[2]

[1] The senior revolving credit facility bears interest at one-month LIBOR, plus 225 basis points. The senior revolving credit facility is part of the Company’s senior credit facility, which is secured by pledges of capital stock of certain subsidiaries of the Company, and liens on substantially all of the Company’s intellectual property and certain other real and personal property.

[2] These facilities encompass bank overdraft lines of credit, bearing interest of 5.14% to 5.69% as of March 31, 2014.