U.S. $1,000,000,000 CREDIT AGREEMENT Dated as of August 19, 2011 Among CA, INC. as Borrower and THE BANKS NAMED HEREIN as Banks and CITIBANK, N.A. as Paying Agent and CITIBANK, N.A. BANK OF AMERICA, N.A. and JPMORGAN CHASE BANK, N.A. as...