Exhibit 99.15

TRADING DATA

Name	Trade Date	Buy/ Sell/ Exercise	No. of Shares / Quantity		Unit Cost		Strike Price	Trade Amount		Security	Expiration Date
Pershing Square, L.P.	September 20, 2018	Sell		19,860	$	126.09	N/A	$	2,504,246	Common Stock	N/A
Pershing Square, L.P.	September 21, 2018	Sell		19,800	$	126.59	N/A	$	2,506,426	Common Stock	N/A
Pershing Square, L.P.	September 24, 2018	Sell		12,000	$	125.43	N/A	$	1,505,121	Common Stock	N/A
Pershing Square, L.P.	September 25, 2018	Sell		600	$	125.19	N/A	$	75,114	Common Stock	N/A
Pershing Square, L.P.	September 26, 2018	Sell		5,353	$	125.18	N/A	$	670,094	Common Stock	N/A
Pershing Square, L.P.	November 8, 2018	Sell		899,647	$	109.39	N/A	$	98,411,106	Common Stock	N/A
Pershing Square II, L.P.	November 8, 2018	Sell		28,943	$	109.39	N/A		N/A	Cash-Settled Total Return Swap	December 2, 2019
Pershing Square II, L.P.	November 8, 2018	Sell		7,755	$	109.39	N/A		N/A	Cash-Settled Total Return Swap	December 2, 2019
Pershing Square II, L.P.	November 8, 2018	Sell		3,789	$	109.39	N/A		N/A	Cash-Settled Total Return Swap	December 2, 2019