13. Non-Interest Revenue and Expense Detail

The following is a detail of Other commissions and fees for the three months ended March 31:

(Millions)		2015		2014
Foreign currency conversion fee revenue		$	211	$	213
Delinquency fees			195		181
Loyalty Partner-related fees			91		91
Service fees			87		90
Other^(a)			35		43
	Total Other commissions and fees	$	619	$	618

Other primarily includes revenues from fees related to Membership Rewards programs.

The following is a detail of Other revenues for the three months ended March 31:

(Millions)		2015		2014
Global Network Services partner revenues		$	164	$	158
Net realized gains on investment securities			-		39
Other^(a)			304		304
	Total Other revenues	$	468	$	501

Other includes revenues arising from net revenue earned on cross-border Card Member spending, merchant-related fees, insurance premiums earned from Card Member travel and other insurance programs, Travelers Cheques-related revenues, revenues related to the GBT JV transition services agreement, earnings from equity method investments (including the GBT JV) and other miscellaneous revenue and fees.

The following is a detail of Other, net expenses for the three months ended March 31:

(Millions)		2015		2014
Professional services		$	624	$	692
Occupancy and equipment			434		462
Card and merchant-related fraud losses ^(a)			100		84
Communications			88		93
Other^(b)			153		218
	Total Other, net	$	1,399	$	1,549

Beginning January 1, 2015, merchant-related fraud losses are reported within Other, net expenses.
Other expense includes general operating expenses, gains (losses) on sale of assets or businesses not classified as discontinued operations, litigation, certain internal and regulatory review-related reimbursements and insurance costs or settlements, investment impairments certain Loyalty Partner-related expenses and foreign currency-related gains and losses, (including the favorable impact from the reassessment of the functional currency of certain UK legal entities in the three months ended March 31, 2015).