Further more I wouldn't be surprised if Warren Buffet i.e. Berkshire Hathaway participates in the financing of a potential TNT purchase by UPS. Berkshire Hathaway already holds a small position in UPS (1,429,200 shares) and very recently helped finance the acquisition of two other companies, namely;
Wrigley by Mars
Wrigley - Investor Relations - News Release=
Funding for the transaction includes approximately $11 billion from Mars, a $5.7 billion committed senior debt facility from Goldman, Sachs,
and $4.4 billion of subordinated debt from Berkshire Hathaway, Inc. At closing, Berkshire Hathaway has committed to purchase a minority equity interest for $2.1 billion in the Wrigley Company subsidiary at a discount to the share price being paid to the stockholders of Wrigley.
and
Rhom and Haas by Dow
Dow Acquires Rohm and Haas, Creating World’s Leading Specialty Chemicals and Advanced Materials Company
Financing for the acquisition includes an equity investment by
Berkshire Hathaway and the Kuwait Investment Authority in the form of convertible preferred securities for
$3 billion and $1 billion respectively.