United Parcel Service, Inc. Annual report pursuant to Section 13 and 15(d)

SHAREOWNERS' EQUITY - Activity in Accumulated Other Comprehensive Income (Loss) (Phantom) (Detail)

v3.10.0.1

SHAREOWNERS' EQUITY - Activity in Accumulated Other Comprehensive Income (Loss) (Phantom) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Foreign currency translation gain (loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Aggregate adjustment for the period, tax effect	$ 37	$ (161)	$ 32
Unrealized gain (loss) on marketable securities, net of tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Current period changes in fair value, tax effect	(1)	(1)	0
Reclassification to earnings, tax effect	1	1	0
Unrealized gain (loss) on cash flow hedges, net of tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Current period changes in fair value, tax effect	135	(190)	75
Reclassification to earnings, tax effect	18	(3)	(142)
Unrecognized pension and postretirement benefit costs, net of tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification to earnings, tax effect	439	269	1,040
Net actuarial gain (loss) and prior service cost resulting from remeasurements of plan assets and liabilities, tax effect	$ (355)	$ (180)	$ (1,460)

- Definition

The tax effect on elements that Includes the accumulated change in the value of either the projected benefit obligation or the plans assets resulting from experience different from that assumed or from a change in an actuarial assumption, after tax. Also includes the cost or benefit resulting from a plan amendment that occurred during the period, after tax. These amounts have not been recognized in net periodic benefit cost pursuant to SFAS 87 and 106.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of tax expense (benefit), after 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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- Definition

Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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- Definition

Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

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Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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