Revenues from Contracts with Customers (Tables)

6 Months Ended

Sep. 30, 2019

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregated Reported Revenue

The following table presents disaggregated reported revenue by category:



	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
	(in millions)
Service revenue
Postpaid	$	4,218	$	4,255	$	8,417	$	8,443
Prepaid	792		954		1,635		1,936
Wholesale, affiliate and other	36		293		321		587
Wireline	227		260		463		536
Total service revenue	5,273		5,762		10,836		11,502
Equipment sales	1,192		1,418		2,412		2,591
Equipment rentals	1,330		1,253		2,689		2,465
Total revenue	$	7,795	$	8,433	$	15,937	$	16,558

Schedule of Contract Assets and Contract Liabilities

The following table presents the opening and closing balances of our contract assets, contract liabilities, and receivables balances, as well as capitalized costs associated with contracts with customers:



	September 30,			March 31,
	2019			2019
	(in millions)
Contract assets and liabilities
Contract assets⁽¹⁾	$	1,031		$	928
Billed trade receivables	2,679			2,690
Unbilled trade receivables	1,091			945
Contract liabilities	986			1,009

Other related assets
Capitalized costs to acquire a customer contract:
Sales commissions - beginning balance	$	1,559
Sales commissions - additions	610
Amortization of capitalized sales commissions	(457		)
Net costs to acquire a customer contract	$	1,712

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(1)	The fluctuation correlates directly to the execution of new customer contracts and invoicing and collections from customers in the normal course of business.

The following table presents revenue recognized during the six-month periods ended September 30, 2019 and 2018:



	Six Months Ended
	September 30,
	2019		2018
	(in millions)
Amounts included in the beginning of period contract liability balance	$	909	$	942

Schedule of Remaining Performance Obligations

The aggregate amount of total transaction price allocated to performance obligations in contracts existing as of the balance sheet date, which are wholly or partially unsatisfied as of the end of the reporting period, and the expected time frame for satisfaction of those wholly or partially unsatisfied performance obligations, are as follows:



	(in millions)
Remainder of fiscal year ending March 31, 2020	$	4,683
Fiscal year ending March 31, 2021	3,864
Thereafter	62
Total	$	8,609