Income Taxes (Summary of Valuation Allowance) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Valuation Allowance [Line Items]
Tax credit carryforwards, Deferred tax asset (liability)	$ 960	$ 1,014
Tax credit carryforwards, valuation allowance	(517)
Tax credit carryforwards, net deferred tax asset (liability)	443
Total U.S. federal and state tax loss carryforwards, deferred tax asset (liability)	594
Total U.S. federal and state tax loss carryforwards, Valuation allowance	(127)
Total U.S. federal and state tax loss carryforwards, net deferred tax asset (liability)	467
Other net deferred tax assets	161
Other net deferred tax assets, valuation allowance	0
Net deferred tax assets (liabilities), Deferred tax asset (liability)	1,715
Net deferred tax assets (liabilities), valuation allowance	(644)	(839)
Net deferred tax assets (liabilities), net of deferred tax (liabilities) assets	1,071	$ 244
Foreign tax credits
Valuation Allowance [Line Items]
Tax credit carryforwards, Deferred tax asset (liability)	765
Tax credit carryforwards, valuation allowance	(517)
Tax credit carryforwards, net deferred tax asset (liability)	248
General business credits
Valuation Allowance [Line Items]
Tax credit carryforwards, Deferred tax asset (liability)	195
Tax credit carryforwards, valuation allowance	0
Tax credit carryforwards, net deferred tax asset (liability)	195
Federal
Valuation Allowance [Line Items]
Tax loss carryforwards, deferred tax asset (liability)	428
Tax loss carryforwards, valuation allowance	0
Tax loss carryforwards, net deferred tax asset (liability)	428
State
Valuation Allowance [Line Items]
Tax loss carryforwards, deferred tax asset (liability)	166
Tax loss carryforwards, valuation allowance	(127)
Tax loss carryforwards, net deferred tax asset (liability)	$ 39