Quarterly report pursuant to Section 13 or 15(d)

Computation of Basic and Diluted Earnings Per Share (Detail)

v2.4.1.9
Computation of Basic and Diluted Earnings Per Share (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Numerator:    
Net income attributable to common shareowners $ 1,026us-gaap_NetIncomeLoss $ 911us-gaap_NetIncomeLoss
Denominator:    
Weighted average shares 903us-gaap_WeightedAverageNumberOfSharesIssuedBasic 921us-gaap_WeightedAverageNumberOfSharesIssuedBasic
Deferred compensation obligations 1ups_DeferredCompensationObligations 1ups_DeferredCompensationObligations
Vested portion of restricted shares 2us-gaap_WeightedAverageNumberOfSharesRestrictedStock 1us-gaap_WeightedAverageNumberOfSharesRestrictedStock
Denominator for basic earnings per share 906us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 923us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Denominator for diluted earnings per share 913us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 931us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Basic earnings per share $ 1.13us-gaap_EarningsPerShareBasic $ 0.99us-gaap_EarningsPerShareBasic
Diluted earnings per share $ 1.12us-gaap_EarningsPerShareDiluted $ 0.98us-gaap_EarningsPerShareDiluted
Restricted performance units    
Denominator:    
Incremental common shares attributable to share-based payment arrangements 6us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
/ us-gaap_AwardTypeAxis
= ups_RestrictedPerformanceUnitsMember
7us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
/ us-gaap_AwardTypeAxis
= ups_RestrictedPerformanceUnitsMember
Stock option plans    
Denominator:    
Incremental common shares attributable to share-based payment arrangements 1us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
/ us-gaap_AwardTypeAxis
= ups_StockOptionPlansMember
1us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
/ us-gaap_AwardTypeAxis
= ups_StockOptionPlansMember