Debt - Summary of Long-term Debt (Details) $ in Millions	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Face amount		$ 15,485		$ 16,416
Long-term debt, fair value		18,030		18,805
Senior Notes
Debt Instrument [Line Items]
Face amount | €	€ 5,170,000,000
Senior Notes | 5.375% Senior Notes
Debt Instrument [Line Items]
Face amount		0		500
Long-term debt, fair value		$ 0		$ 502
Interest rate	5.375%	5.375%	5.375%	5.375%
Senior Notes | 5.500% Senior Notes
Debt Instrument [Line Items]
Face amount		$ 700		$ 700
Long-term debt, fair value		$ 704		$ 735
Interest rate	5.50%	5.50%	5.50%	5.50%
Senior Notes | 5.750% Senior Notes
Debt Instrument [Line Items]
Face amount		$ 400		$ 400
Long-term debt, fair value		$ 437		$ 449
Interest rate	5.75%	5.75%	5.75%	5.75%
Senior Notes | 5.875% Senior Notes
Debt Instrument [Line Items]
Face amount		$ 800		$ 800
Long-term debt, fair value		$ 899		$ 921
Interest rate	5.875%	5.875%	5.875%	5.875%
Senior Notes | 3.000% Senior Notes
Debt Instrument [Line Items]
Face amount	€ 470,000,000	$ 535	€ 470,000,000	$ 574
Long-term debt, fair value		$ 581		$ 616
Interest rate	3.00%	3.00%	3.00%	3.00%
Senior Notes | 3.625% Senior Notes
Debt Instrument [Line Items]
Face amount		$ 500		$ 500
Long-term debt, fair value		$ 529		$ 535
Interest rate	3.625%	3.625%	3.625%	3.625%
Senior Notes | 4.375% Senior Notes
Debt Instrument [Line Items]
Face amount		$ 1,000		$ 1,000
Long-term debt, fair value		$ 1,111		$ 1,110
Interest rate	4.375%	4.375%	4.375%	4.375%
Senior Notes | 3.625% Senior Notes
Debt Instrument [Line Items]
Face amount	€ 1,300,000,000	$ 1,480	€ 1,300,000,000	$ 1,588
Long-term debt, fair value		$ 1,702		$ 1,776
Interest rate	3.625%	3.625%	3.625%	3.625%
Senior Notes | 4.875% Senior Notes
Debt Instrument [Line Items]
Face amount		$ 1,600		$ 1,600
Long-term debt, fair value		$ 1,829		$ 1,807
Interest rate	4.875%	4.875%	4.875%	4.875%
Senior Notes | 5.875% Senior Notes
Debt Instrument [Line Items]
Face amount		$ 1,900		$ 1,900
Long-term debt, fair value		$ 2,293		$ 2,280
Interest rate	5.875%	5.875%	5.875%	5.875%
Senior Notes | 4.625% Senior Notes
Debt Instrument [Line Items]
Face amount	€ 1,100,000,000	$ 1,252	€ 1,100,000,000	$ 1,344
Long-term debt, fair value		$ 1,565		$ 1,630
Interest rate	4.625%	4.625%	4.625%	4.625%
Senior Notes | 6.375% Senior Notes
Debt Instrument [Line Items]
Face amount		$ 800		$ 800
Long-term debt, fair value		$ 999		$ 995
Interest rate	6.375%	6.375%	6.375%	6.375%
Senior Notes | 3.875% Senior Notes
Debt Instrument [Line Items]
Face amount	€ 1,200,000,000	$ 1,366	€ 1,200,000,000	$ 1,466
Long-term debt, fair value		$ 1,651		$ 1,700
Interest rate	3.875%	3.875%	3.875%	3.875%
Senior Notes | 5.375% Senior Notes
Debt Instrument [Line Items]
Face amount		$ 900		$ 900
Long-term debt, fair value		$ 1,068		$ 1,061
Interest rate	5.375%	5.375%	5.375%	5.375%
Senior Notes | 3.625% Senior Notes
Debt Instrument [Line Items]
Face amount	€ 1,100,000,000	$ 1,252	€ 1,100,000,000	$ 1,344
Long-term debt, fair value		$ 1,493		$ 1,533
Interest rate	3.625%	3.625%	3.625%	3.625%
Senior Notes | 4.875% Senior Notes
Debt Instrument [Line Items]
Face amount		$ 1,000		$ 1,000
Long-term debt, fair value		$ 1,169		$ 1,155
Interest rate	4.875%	4.875%	4.875%	4.875%