Earnings Per Share, Share Repurchases (Details 2) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions								1 Months Ended	3 Months Ended		4 Months Ended	12 Months Ended			23 Months Ended	34 Months Ended	35 Months Ended
	Apr. 27, 2023	Apr. 06, 2023	Feb. 02, 2023	Feb. 01, 2022	Nov. 02, 2021	Oct. 01, 2021	Feb. 01, 2021	Dec. 31, 2023	Apr. 25, 2023	Feb. 01, 2022	Jun. 01, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023	Sep. 30, 2021	Dec. 31, 2023	Dec. 06, 2023	Jan. 24, 2022	Jan. 25, 2021	Dec. 04, 2018
Stock Repurchase [Line Items]
Shares Repurchased												3,300	3,300	10,600
Share Repurchases - Notes to Table [Abstract]
Stock Repurchase Program, Remaining Authorized Repurchase Amount								$ 3,600				$ 3,600			$ 3,600		$ 3,600
January 2021 Share Repurchase Program [Member]
Stock Repurchase [Line Items]
Amount Authorized																				$ 3,000
Shares Retired																	7,000
Average Price Per Share																	$ 431.05
2021 Repurchase Program - Completion Date		April 2023
Shares Repurchased												1,400	3,300	2,200
January 2022 Share Repurchase Program
Stock Repurchase [Line Items]
Amount Authorized																			$ 2,000
Shares Retired															1,900
Average Price Per Share															$ 454.03
Shares Repurchased												1,900	0	0
Shares repurchased amount															$ 900
Share Repurchases - Notes to Table [Abstract]
Stock Repurchase Program, Remaining Authorized Repurchase Amount								$ 1,100				$ 1,100			$ 1,100		$ 1,100
December 2018 Share Repurchase Program
Stock Repurchase [Line Items]
Amount Authorized																					$ 3,000
Shares Retired																8,900
Average Price Per Share																$ 337.18
2018 Repurchase Program - Completion Date						October 2021
Shares Repurchased												0	0	8,400
December 2023 Share Repurchase Program
Stock Repurchase [Line Items]
Amount Authorized																		$ 2,500
Shares Retired								0
Average Price Per Share								$ 0
Shares Repurchased												0	0	0
Q1'23 ASR [Member]
Accelerated Share Repurchases [Line Items]
Accelerated Share Repurchases, Cash or Stock Settlement			500 million
Accelerated Share Repurchases, Settlement (Payment) or Receipt			$ 500
Accelerated Share Repurchase Initial Receipt (Shares)			900
Common stock repurchased			$ 400
Accelerated Share Repurchases, Adjustment to Recorded Amount	$ 100
Accelerated Share Repurchase Final Receipt Shares	200
Accelerated Share Repurchases, Final Price Paid Per Share									$ 458.28
Q1'21 ASR [Member]
Accelerated Share Repurchases [Line Items]
Accelerated Share Repurchases, Cash or Stock Settlement							2.0 billion
Accelerated Share Repurchases, Settlement (Payment) or Receipt							$ 2,000
Accelerated Share Repurchase Initial Receipt (Shares)							5,900
Common stock repurchased							$ 1,700
Accelerated Share Repurchases, Adjustment to Recorded Amount							$ 300
Accelerated Share Repurchase Final Receipt Shares											200
Accelerated Share Repurchases, Final Price Paid Per Share											$ 327.29
Q4'21 ASR [Member]
Accelerated Share Repurchases [Line Items]
Accelerated Share Repurchases, Cash or Stock Settlement					500 million
Accelerated Share Repurchases, Settlement (Payment) or Receipt					$ 500
Accelerated Share Repurchase Initial Receipt (Shares)					1,200
Common stock repurchased					$ 425
Accelerated Share Repurchases, Adjustment to Recorded Amount				$ 75
Accelerated Share Repurchase Final Receipt Shares				100						100
Accelerated Share Repurchases, Final Price Paid Per Share										$ 374.79