Provision (Benefit) for Income Taxes Deferred Tax Table (Details) - USD ($) $ in Millions	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Gross deferred income tax liabilities:
Property, plant and equipment	$ 3,171		$ 2,777
Investments	1,784		1,669
Other	138		154
Total gross deferred income tax liabilities	5,093		4,600
Gross deferred income tax assets:
Accrued liabilities	1,108		872
Foreign tax credits	91	$ 70	140
Federal loss carryovers	730		879
State losses and credits	356		421
Other	121		132
Total gross deferred income tax assets	2,406		2,444
Less valuation allowance	200		297
Net deferred income tax assets	2,206		2,147
Deferred income tax liabilities	$ 2,887		$ 2,453