Stockholders' Equity (Tables)

12 Months Ended

Jun. 30, 2019

Stockholders Equity Note [Abstract]

Schedule of Activity within Other Comprehensive (Loss) Income

The following tables summarize the activity within Other comprehensive (loss) income:

	For the year ended June 30, 2019
	Before tax			Tax benefit (provision)			Net of tax
	(in millions)
Benefit plan adjustments and other
Unrealized losses	$	(133	)	$	35		$	(98	)
Reclassifications realized in net income(a)		12			(3	)		9
Other comprehensive loss	$	(121	)	$	32		$	(89	)

	For the year ended June 30, 2018
	Before tax		Tax provision			Net of tax
	(in millions)
Gains on securities
Unrealized gains	$	222	$	(92	)	$	130
Other comprehensive income	$	222	$	(92	)	$	130
Benefit plan adjustments
Unrealized gains	$	5	$	(1	)	$	4
Reclassifications realized in net income(a)		8		(2	)		6
Other comprehensive income	$	13	$	(3	)	$	10

	For the year ended June 30, 2017
	Before tax		Tax provision			Net of tax
	(in millions)
Benefit plan adjustments
Unrealized gains	$	7	$	(2	)	$	5
Reclassifications realized in net income(a)		8		(3	)		5
Other comprehensive income	$	15	$	(5	)	$	10

^(a) Reclassifications of amounts related to benefit plan adjustments are included in Other, net in the Statements of Operations (See Note 14—Pension and Other Postretirement Benefits for additional information).

Summary of Components of Accumulated Other Comprehensive (Loss) Income, Net of Tax

The following table summarizes the components of Accumulated other comprehensive (loss) income, net of tax:

	As of June 30,
	2019				2018			2017
	(in millions)
Unrealized holding gains on securities	$	-		(a)	$	130		$	-
Benefit plan adjustments and other		(308	)	(b)		(49	)		(59	)
Accumulated other comprehensive (loss) income, net of tax	$	(308	)		$	81		$	(59	)

^(a) The decrease in Unrealized holding gains on securities is a result of the adoption of ASU 2016-01 (See Note 2—Summary of Significant Accounting Policies under the heading “Recently Adopted and Recently Issued Accounting Guidance and U.S. Tax Reform” for additional information).

^(b) The increase in the accumulated other comprehensive loss for Benefit plan adjustments and other includes a reclassification of $13 million as a result of the adoption of ASU 2018-02 (See Note 2—Summary of Significant Accounting Policies under the heading “Recently Adopted and Recently Issued Accounting Guidance and U.S. Tax Reform” for additional information) and $157 million related to the Shared Plans (as defined in Note 14—Pension and Other Postretirement Benefits”) allocable to the Company’s employees that was transferred to the Company.