Lease Obligations (Tables)

12 Months Ended

Mar. 31, 2016

Leases, Operating [Abstract]

Schedule of future minimum rental payments for operating leases

At March 31, 2016, future minimum lease payments required under operating leases that have initial or remaining noncancelable lease terms in excess of one year for years ending March 31 are:

(In millions)	Noncancelable Operating Leases
2017	$	363
2018	309
2019	252
2020	209
2021	168
Thereafter	669
Total minimum lease payments (1)	$	1,970

(1) Minimum lease payments have not been reduced by minimum sublease rentals of $45 million due under future noncancelable subleases.