Stockholders' Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
AOCI Including Portion Attributable to Noncontrolling Interest [Abstract]
Beginning balance	$ 5,375	$ 5,308
Other comprehensive loss before reclassifications	(172)	(36)
Amounts reclassified from accumulated other comprehensive loss	(6)	(88)
Ending balance	5,049	5,386
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest [Abstract]
Beginning balance	(651)	(554)
Other comprehensive loss before reclassifications	(176)	(35)
Amounts reclassified from accumulated other comprehensive loss	0	(86)
Ending balance	(827)	(675)
Foreign Currency Translation Adjustments | HPS Business
AOCI Including Portion Attributable to Noncontrolling Interest [Abstract]
Amounts reclassified from accumulated other comprehensive loss		86
Cash Flow Hedges
AOCI Including Portion Attributable to Noncontrolling Interest [Abstract]
Beginning balance	10	(1)
Other comprehensive loss before reclassifications	4	(1)
Amounts reclassified from accumulated other comprehensive loss	(4)	0
Ending balance	10	(2)
Pension and Other Post-retirement Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest [Abstract]
Beginning balance	256	253
Other comprehensive loss before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive loss	(2)	(2)
Ending balance	254	251
Accumulated Other Comprehensive Loss
AOCI Including Portion Attributable to Noncontrolling Interest [Abstract]
Beginning balance	(385)	(302)
Ending balance	$ (563)	$ (426)