Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Contingency [Line Items]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The components of the provision for income taxes for the years ended December 31 are as follows:

(in millions)	2019		2018		2017
Current Provision:
Federal	$	2,629	$	2,897	$	3,597
State and local	319		219		314
Foreign	564		404		254
Total current provision	3,512		3,520		4,165
Deferred provision (benefit)	230		42		(965		)
Total provision for income taxes	$	3,742	$	3,562	$	3,200

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The reconciliation of the tax provision at the U.S. federal statutory rate to the provision for income taxes and the effective tax rate for the years ended December 31 is as follows:

(in millions, except percentages)	2019					2018					2017
Tax provision at the U.S. federal statutory rate	$	3,776		21.0	%	$	3,348		21.0	%	$	4,908		35.0	%
Change in tax law	—			—		—			—		(1,199		)	(8.6	)
State income taxes, net of federal benefit	271			1.5		168			1.0		197			1.4
Share-based awards - excess tax benefit	(132		)	(0.7	)	(161		)	(1.0	)	(319		)	(2.3	)
Non-deductible compensation	119			0.7		117			0.7		175			1.3
Health insurance industry tax	—			—		552			3.5		—			—
Foreign rate differential	(214		)	(1.2	)	(203		)	(1.3	)	(282		)	(2.0	)
Other, net	(78		)	(0.5	)	(259		)	(1.6	)	(280		)	(2.0	)
Provision for income taxes	$	3,742		20.8	%	$	3,562		22.3	%	$	3,200		22.8	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

The components of deferred income tax assets and liabilities as of December 31 are as follows:

(in millions)	2019			2018
Deferred income tax assets:
Accrued expenses and allowances	$	654		$	551
U.S. federal and state net operating loss carryforwards	260			190
Share-based compensation	97			91
Nondeductible liabilities	184			184
Non-U.S. tax loss carryforwards	420			426
Lease liability	892			—
Other-domestic	179			306
Other-non-U.S.	329			337
Subtotal	3,015			2,085
Less: valuation allowances	(147		)	(84		)
Total deferred income tax assets	2,868			2,001
Deferred income tax liabilities:
U.S. federal and state intangible assets	(2,370		)	(2,131		)
Non-U.S. goodwill and intangible assets	(735		)	(709		)
Capitalized software	(683		)	(603		)
Depreciation and amortization	(301		)	(266		)
Prepaid expenses	(172		)	(152		)
Outside basis in partnerships	(317		)	(300		)
Lease right-of-use asset	(887		)	—
Other-domestic	(177		)	—
Other-non-U.S.	(219		)	(314		)
Total deferred income tax liabilities	(5,861		)	(4,475		)
Net deferred income tax liabilities	$	(2,993	)	$	(2,474	)

Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table Text Block]

A reconciliation of the beginning and ending amount of unrecognized tax benefits as of December 31 is as follows:

(in millions)	2019			2018			2017
Gross unrecognized tax benefits, beginning of period	$	1,056		$	598		$	263
Gross increases:
Current year tax positions	512			487			356
Prior year tax positions	2			87			40
Gross decreases:
Prior year tax positions	(96		)	(84		)	(33		)
Settlements	(46		)	(20		)	(24		)
Statute of limitations lapses	(5		)	(12		)	(4		)
Gross unrecognized tax benefits, end of period	$	1,423		$	1,056		$	598