The following summarizes our principal contractual commitments, excluding open orders for purchases that support normal operations, as of March 31, 2017 (in millions):



	Nine Months Ended December 31,		Year Ended December 31,
	2017		2018		2019		2020		2021		Thereafter		Total
Debt principal and interest	$	1,336	$	328	$	1,571	$	467	$	1,246	$	7,911	$	12,859
Capital lease obligations, including interest (1)	3,488		3,609		2,254		640		279		280		10,550
Finance lease obligations, including interest (2)	183		250		254		256		264		2,102		3,309
Operating leases	1,091		1,356		1,244		1,116		988		4,025		9,820
Unconditional purchase obligations (3)	505		662		362		129		51		26		1,735
Other commitments (4) (5)	912		1,022		734		592		479		3,927		7,666
Total commitments	$	7,515	$	7,227	$	6,419	$	3,200	$	3,307	$	18,271	$	45,939

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(1)	Excluding interest, current capital lease obligations of $4.0 billion and $4.4 billion are recorded within “Accrued expenses and other” as of December 31, 2016, and March 31, 2017, and $5.1 billion and $5.8 billion are recorded within “Other long-term liabilities” as of December 31, 2016, and March 31, 2017.


(2)	Excluding interest, current finance lease obligations of $144 million and $159 million are recorded within “Accrued expenses and other” as of December 31, 2016, and March 31, 2017, and $2.4 billion and $2.5 billion are recorded within “Other long-term liabilities” as of December 31, 2016, and March 31, 2017.

(3)

Includes unconditional purchase obligations related to long-term agreements to acquire and license digital media content that are not reflected on the consolidated balance sheets. For those agreements with variable terms, we do not estimate the total obligation beyond any minimum quantities and/or pricing as of the reporting date. Purchase obligations associated with renewal provisions solely at the option of the content provider are included to the extent such commitments are fixed or a minimum amount is specified.


(4)	Includes the estimated timing and amounts of payments for rent and tenant improvements associated with build-to-suit lease arrangements and equipment lease arrangements that have not been placed in service and digital media content liabilities associated with long-term digital media content assets with initial terms greater than one year.


(5)	Excludes $1.8 billion of accrued tax contingencies for which we cannot make a reasonably reliable estimate of the amount and period of payment, if any.