DOCUMENT AND ENTITY INFORMATION - USD ($) $ in Billions	12 Months Ended
	Jun. 30, 2020	Jul. 31, 2020	Dec. 31, 2019
Entity Information [Line Items]
Entity Registrant Name	PROCTER & GAMBLE CO
Entity Central Index Key	0000080424
Entity Filer Category	Large Accelerated Filer
Document Type	10-K/A
Fiscal Year end date	Jun. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	true
Trading Symbol	PG
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Files	No
Entity Common Stock, Shares Outstanding		2,486,086,692
Entity Public Float			$ 304
Entity Address, Address Line One	One Procter & Gamble Plaza
Entity Address, State or Province	Cincinnati
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	45202
City Area Code	513
Local Phone Number	983-1100
Entity Tax Identification Number	31-0411980
Entity Incorporation, State or Country Code	OH
Entity Shell Company	false
Document Annual Report	true
Document Transition Report	false
Entity File Number	1-434
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--06-30
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Common Stock
Entity Information [Line Items]
Trading Symbol	PG
Title of 12(b) Security	Common Stock, without Par Value
0.275% Notes due 2020 [Domain]
Entity Information [Line Items]
Trading Symbol	PG20A
Title of 12(b) Security	4.125% EUR notes due December 2020
2.000% Notes due 2021 [Domain]
Entity Information [Line Items]
Trading Symbol	PG21
Title of 12(b) Security	2.000% notes due 2021
2.000% Notes due 2022 [Domain]
Entity Information [Line Items]
Trading Symbol	PG22B
Title of 12(b) Security	2.000% notes due 2022
1.125% Notes due 2023 [Domain]
Entity Information [Line Items]
Trading Symbol	PG23A
Title of 12(b) Security	1.125% notes due 2023
0.500% Notes due 2024 [Domain]
Entity Information [Line Items]
Trading Symbol	PG24A
Title of 12(b) Security	0.500% notes due 2024
0.625% Notes due 2024 [Domain]
Entity Information [Line Items]
Trading Symbol	PG24B
Title of 12(b) Security	0.625% notes due 2024
1.375% Notes due 2025 [Domain]
Entity Information [Line Items]
Trading Symbol	PG25
Title of 12(b) Security	1.375% notes due 2025
4.875% EUR Notes due May 2027 [Domain]
Entity Information [Line Items]
Trading Symbol	PG27A
Title of 12(b) Security	4.875% EUR notes due May 2027
1.200% Notes due 2028 [Domain]
Entity Information [Line Items]
Trading Symbol	PG28
Title of 12(b) Security	1.200% notes due 2028
1.250% Notes due 2029 [Domain]
Entity Information [Line Items]
Trading Symbol	PG29B
Title of 12(b) Security	1.250% notes due 2029
1.800% Notes due 2029 [Domain]
Entity Information [Line Items]
Trading Symbol	PG29A
Title of 12(b) Security	1.800% notes due 2029
6.250% GBP notes due January 2030 [Domain]
Entity Information [Line Items]
Trading Symbol	PG30
Title of 12(b) Security	6.250% GBP notes due January 2030
5.250% GBP notes due January 2033 [Domain]
Entity Information [Line Items]
Trading Symbol	PG33
Title of 12(b) Security	5.250% GBP notes due January 2033
1.875% Notes due 2038 [Domain]
Entity Information [Line Items]
Trading Symbol	PG38
Title of 12(b) Security	1.875% notes due 2038
NEW YORK STOCK EXCHANGE, INC.
Entity Information [Line Items]
Security Exchange Name	NYSE
NEW YORK STOCK EXCHANGE, INC. | Common Stock
Entity Information [Line Items]
Security Exchange Name	NYSE