The following summarizes our principal contractual commitments, excluding open orders for purchases that support normal operations, as of March 31, 2013 (in millions):


	Nine Months Ended December 31, 2013		Year Ended December 31,
	Nine Months Ended December 31, 2013		2014		2015		2016		2017		Thereafter		Total
Operating and capital commitments:
Debt principal and interest	$	541	$	253	$	866	$	43	$	1,043	$	1,406	$	4,152
Capital leases, including interest		483		498		359		71		22		91		1,524
Financing lease obligations, including interest		1		1		1		1		1		9		14
Operating leases		447		577		517		465		405		2,112		4,523
Unconditional purchase obligations (1)		237		299		135		10		1		—		682
Other commitments (2) (3)		357		248		142		102		92		943		1,884

Total commitments	$	2,066	$	1,876	$	2,020	$	692	$	1,564	$	4,561	$	12,779

(1)	Includes unconditional purchase obligations related to agreements to acquire and license digital video content that represent long-term liabilities or that are not reflected on the consolidated balance sheets.

(2)	Includes the estimated timing and amounts of payments for rent and tenant improvements associated with build-to-suit lease arrangements that have not been placed in service.

(3)	Excludes $314 million of tax contingencies for which we cannot make a reasonably reliable estimate of the amount and period of payment, if any.