receivables from customers and other ( a ) 23648 17461 2014 2014 total wholesale credit- related assets 411814 392954 1784 2878 lending-related commitments 434814 382739 355 865 total wholesale credit exposure $ 846628 $ 775693 $ 2139 $ 3743 credit portfolio management derivatives notional , net ( b ) $ ( 27447 ) $ ( 26240 ) $ ( 25 ) $ ( 38 ) liquid securities and other cash collateral held against derivatives ( 13658 ) ( 21807 ) na na ( a ) receivables from customers and other primarily includes margin