Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash paid for:
Interest	$ 22	$ 65
Taxes on income, net of refunds	53	52
Operating:
ROU assets obtained in exchange for operating lease liabilities	55	52
Prepaid assets acquired under long-term financing	34	111
Investing:
Capital expenditures in accounts payable and accrued expenses	8	1
Capital expenditures through finance lease obligations	26	71
Assets acquired under long-term financing	2	35
Financing:
Shares repurchased but not settled in cash	0	19
Income tax refunds	13	14
Change in lease classification from operating to finance lease	$ 338	$ 242