Suppose the following information was taken from the 2017 financial statements of pharmaceutical giant Merck and Co. (All dollar amounts are in millions.)

Retained earnings, January 1, 2017		$45,815.5
Cost of goods sold		8,625.4
Selling and administrative expenses		8,778.3
Dividends		3,479.8
Sales revenue		41,266.2
Research and development expense		6,331.7
Income tax expense		2,969.6