Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Mar. 31, 2023	Mar. 31, 2022
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 1,635	$ 1,548
Current portion of operating lease liabilities	299	297
Long-term operating lease liabilities	1,402	1,366
Operating leases
Operating lease right-of-use assets	1,635	1,548
Current portion of operating lease liabilities	299	297
Long-term operating lease liabilities	1,402	1,366
Total operating lease liabilities	1,701	1,663
Finance leases
Property, plant, and equipment, net	$ 180	$ 206
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant, and equipment, net	Property, plant, and equipment, net
Current portion of long-term debt	$ 29	$ 25
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Less: Current portion	Less: Current portion
Long-term debt	$ 173	$ 185
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt	Long-term debt
Total finance lease liabilities	$ 202	$ 210
Weighted-average remaining lease term (years)
Operating leases	6 years 10 months 24 days	6 years 10 months 24 days
Finance leases	7 years 9 months 18 days	8 years 9 months 18 days
Weighted-average discount rate
Operating leases	3.03%	2.47%
Finance leases	2.66%	2.50%
Held-for-sale | European Businesses (Disposal Group)
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets		$ 494
Current portion of operating lease liabilities		83
Long-term operating lease liabilities		442
Operating leases
Operating lease right-of-use assets		494
Current portion of operating lease liabilities		83
Long-term operating lease liabilities		$ 442