A very quick search on nwa.com brought up $2278 B fares, and $7510 business fares (which strangely include a flight on UA to ORD, to connect to KL ORD-AMS).

The real problem is that another search (even when I'm logged in as a Platinum WP member) shows no award availability in Business for 1/20. I'm guessing that a 120,000 mile award ticket may be difficult to find around those dates, and so you'd end up coughing up 240,000 miles (if that even becomes available).