COMMITMENTS AND CONTINGENCIES Legal Proceedings We are involved, and will continue to be involved, in numerous legal proceedings arising out of the conduct of our business, including litigation with customers, employment-related lawsuits, class actions, purported class actions, and actions brought by governmental authorities. We do not believe that the ultimate resolution of these matters will have a material adverse effect on our results of operations, financial condition, or cash flows. However, the results of these matters cannot be predicted with certainty, and an unfavorable resolution of one or more of these matters could have a material adverse effect on our financial condition, results of operations, and cash flows. Lease Commitments We lease real property, equipment, and software under various operating leases, most of which have terms from one to twenty years. We account for leases under related accounting guidance and other authoritative literature. Expenses under real property, equipment, and software leases were $53.9 million in 2011 , $55.4 million in 2010 , and $66.6 million in 2009 . The leases require payment of real estate taxes, insurance, and maintenance in addition to rent. Most of the leases contain renewal options and rent escalation clauses. Lease expense is recognized on a straight-line basis over the term of the lease, including any option periods, as appropriate. The same lease term is used for lease classification, the amortization period of related leasehold improvements, and the estimation of future lease commitments. Future minimum lease obligations under non-cancelable real property, equipment, and software leases with initial terms in excess of one year at December 31, 2011 , are as follows: Noncancelable Lease Commitments Capital (1) Operating (1) (2) 2012 $ 6.7 $ 47.1 2013 3.0 41.7 2014 19.9 38.4 2015 1.1 33.3 2016 1.0 32.2 Thereafter 12.0 264.2 Total minimum lease payments $ 43.7 $ 456.9 Less: Amounts representing interest (12.9 ) $ 30.8 (1) Amounts for capital and operating le