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

Annual report pursuant to Section 13 and 15(d)

SHAREOWNERS' EQUITY - Roll-forward of Common Stock, Additional Paid-in Capital, and Retained Earnings Accounts (Detail)

SHAREOWNERS' EQUITY - Roll-forward of Common Stock, Additional Paid-in Capital, and Retained Earnings Accounts (Detail) - USD ($) shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock purchases, Shares									(9.1)	(8.9)	(16.1)
Balance at beginning of year				$ 3,021					$ 3,021
Net income attributable to controlling interests	$ (106)	$ 1,750	$ 1,685	1,111	$ 453	$ 1,508	$ 1,485	$ 1,345	4,440	$ 4,791	$ 4,905
Common stock purchases									(1,005)	(1,000)	(1,816)
Balance at end of year	3,267				3,021				3,267	3,021
Payments for Repurchase of Common Stock									1,004	1,011	1,813
Stockholders' Equity, Other									0	(42)	(2)
Balance at beginning of year				$ 16					16
Balance at beginning of year	$ 16				$ 16				16	16
Dividends [Domain] \| Class A Common Stock:
Stockholders Equity Note [Line Items]
Dividends, Common Stock, Stock									$ 147	$ 178	$ 157
Common Stock \| Class A Common Stock:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year, Shares				163.0				173.0	163.0	173.0	180.0
Common stock purchases, Shares									(3.0)	(3.0)	(4.0)
Stock award plans, Shares									5.0	3.0	4.0
Common stock issuances, Shares									3.0	4.0	3.0
Conversions of class A to class B common stock, Shares									(12.0)	(14.0)	(10.0)
Balance at end of year, Shares	156.0				163.0				156.0	163.0	173.0
Balance at beginning of year				$ 2				$ 2	$ 2	$ 2	$ 2
Stock award plans									0	0	0
Common stock purchases									0	0	0
Common stock issuances									0	0	0
Conversions of class A to class B common stock									0	0	0
Balance at end of year	$ 2				$ 2				$ 2	$ 2	$ 2
Common Stock \| Class B Common Stock:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year, Shares				696.0				687.0	696.0	687.0	689.0
Common stock purchases, Shares									(7.0)	(5.0)	(12.0)
Conversions of class A to class B common stock, Shares									12.0	14.0	10.0
Balance at end of year, Shares	701.0				696.0				701.0	696.0	687.0
Balance at beginning of year				$ 7				$ 7	$ 7	$ 7	$ 7
Common stock purchases									0	0	0
Conversions of class A to class B common stock									0	0	0
Balance at end of year	$ 7				$ 7				7	7	7
Additional Paid-In Capital:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Option Premiums Received (Paid)									21	34	54
Balance at beginning of year				0				0	0	0	0
Stock award plans									778	419	396
Common stock purchases									(1,005)	(859)	(813)
Common stock issuances									356	406	363
Balance at end of year	150				0				150	0	0
Retained Earnings:
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year				8,006				5,852	8,006	5,852	4,880
Net income attributable to controlling interests									4,440	4,791	4,905
Dividends ($3.84, $3.64, and $3.32 per share) (1)									(3,341)	(3,189)	(2,928)
Common stock purchases									0	(141)	(1,003)
Balance at end of year	9,105				8,006				9,105	8,006	5,852
Cumulative Effect of New Accounting Principle in Period of Adoption	0				735				0	735	0
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of year				$ 16				$ 30	16	30	24
Change in non-controlling interests									0	(14)	6
Balance at beginning of year	$ 16				$ 16				$ 16	$ 16	$ 30