COMPREHENSIVE INCOME STATEMENTS - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 8,420	$ (6,302)	$ 17,244	$ 274
Other comprehensive income (loss), net of tax:
Net change related to derivatives	(15)	(7)	(60)	(113)
Net change related to investments	881	(878)	620	(1,166)
Translation adjustments and other	(264)	(40)	(319)	253
Other comprehensive income (loss)	602	(925)	241	(1,026)
Comprehensive income (loss)	$ 9,022	$ (7,227)	$ 17,485	$ (752)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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