EQUITY - Changes in Accumulated Other Comprehensive Income (Details) $ in Millions	6 Months Ended
Dec. 31, 2016 USD ($)
Changes in AOCI, net of tax by component
Balance, beginning of year	$ 3,572
Balance, end of year	3,793
Accumulated other comprehensive income (loss)
Changes in AOCI, net of tax by component
Balance, beginning of year	(545)
OCI before reclassifications	(88)
Amounts reclassified from AOCI	(6)
Net current-period OCI	(94)
Balance, end of year	(639)
Gain (Loss) on Investments
Changes in AOCI, net of tax by component
Balance, beginning of year	7
OCI before reclassifications	(10)
Amounts reclassified from AOCI	(1)
Net current-period OCI	(11)
Balance, end of year	(4)
Gain (Loss) on Cash-Flow Hedges
Changes in AOCI, net of tax by component
Balance, beginning of year	32
OCI before reclassifications	38
Amounts reclassified from AOCI	(16)
Net current-period OCI	22
Balance, end of year	54
Amounts Included in Net Periodic Benefit Cost
Changes in AOCI, net of tax by component
Balance, beginning of year	(285)
OCI before reclassifications	4
Amounts reclassified from AOCI	11
Net current-period OCI	15
Balance, end of year	(270)
Foreign currency translation gains	6
Translation Adjustments
Changes in AOCI, net of tax by component
Balance, beginning of year	(299)
OCI before reclassifications	(120)
Net current-period OCI	(120)
Balance, end of year	$ (419)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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