Walmart Inc. is the world's largest retailer. A large portion of the premises that the company occupies are leased. Its financial statements and disclosure notes revealed the following information:

Balance Sheet	2017	2016
($ in millions)
Assets
Property:
Property under finance lease obligations	$ 11,637	$ 11,096
Less: Accumulated amortization	$ (5,169)	$ (4,751)
Liabilities
Current liabilities:
Finance lease obligations due within one year	565	551
Long-term debt:
Long-term finance lease obligations	6,003	5,816

Required:

1. The net asset "property under finance lease obligations" has a 2017 balance of $6,468 million ($11,637 $5,169). Liabilities for these leases total $6,568 ($565 + $6,003). Why do the asset and liability amounts differ?

2. Show a 2017 summary entry to record Walmart's lease payments, which were $800 million.

3. What is the approximate average interest rate on Walmart's finance leases? Explain what an average interest rate is and why it is important to Walmart.