Income Taxes - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Effective income tax rate reconciliation	21.00%	21.00%
Income tax (expense) benefit	$ 459	$ 19	$ 63
Changes in valuation allowance for tax loss carryforwards and credits	(605)	(36)	0
Goodwill and intangible impairment charges	383	241	3
Goodwill impairment and other non-deductible impairment	65	22	0
Gains on transfers of subsidiaries	0	21	0
Valuation allowance	1,428	762
Discrete charge			11
State tax loss carryforwards	3	2
Foreign tax loss carryforwards	43	30
Unremitted earnings of foreign subsidiaries	2,300
Estimated income tax liability related to unremitted earnings of foreign subsidiaries	101
Estimated decrease in unrecognized tax benefits related to the expiration of foreign statute of limitations and the conclusion of foreign income tax examinations that may occur within the coming year	93
Spain
Schedule of Equity Method Investments [Line Items]
Changes in valuation allowance for tax loss carryforwards and credits		$ 33
Australia
Schedule of Equity Method Investments [Line Items]
Valuation allowance			$ 10
United States
Schedule of Equity Method Investments [Line Items]
Changes in valuation allowance for tax loss carryforwards and credits	(507)
Amount that will affect statements of income	39
Non-US
Schedule of Equity Method Investments [Line Items]
Income tax (expense) benefit	98
China and Mexico
Schedule of Equity Method Investments [Line Items]
Changes in valuation allowance for tax loss carryforwards and credits	$ (19)