Debt and Financing Activities (Tables)

12 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Schedule of long-term debt

Long-term debt consisted of the following:

	March 31,
(In millions)	2019		2018
U.S. Dollar notes(1) (2)
2.28% Notes due March 15, 2019	$	—	$	1,100
3.65% Notes due November 30, 2020	700		—
4.75% Notes due March 1, 2021	323		323
2.70% Notes due December 15, 2022	400		400
2.85% Notes due March 15, 2023	400		400
3.80% Notes due March 15, 2024	1,100		1,100
7.65% Debentures due March 1, 2027	167		167
3.95% Notes due February 16, 2028	600		600
4.75% Notes due May 30, 2029	400		—
6.00% Notes due March 1, 2041	282		282
4.88% Notes due March 15, 2044	411		411
Foreign currency notes (1) (3)
Floating Rate Euro Notes due February 12, 2020 (4)	280		337
0.63% Euro Notes due August 17, 2021	673		695
1.50% Euro Notes due November 17, 2025	670		691
1.63% Euro Notes due October 30, 2026	560		669
3.13% Sterling Notes due February 17, 2029	586		630
Lease and other obligations	43		75
Total debt	7,595		7,880
Less: Current portion	330		1,129
Total long-term debt	$	7,265	$	6,751

(1) These notes are unsecured and unsubordinated obligations of the Company.

(2) Interest on these notes is payable semi-annually.

(3) Interest on these foreign bonds and notes is payable annually, except the 2020 Floating Rate Euro Notes.

(4) Interest on these notes is payable quarterly.