Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended			3 Months Ended						9 Months Ended
	Nov. 30, 2022	Oct. 27, 2022	Oct. 31, 2022	Oct. 28, 2022	Feb. 28, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Subsequent Event [Line Items]
Dividends declared (usd per share)						$ 8.57	$ 7.38	$ 3.78	$ 2.07	$ 0.56	$ 0.56	$ 19.73	$ 3.19
Repayments of debt					$ 1,300							$ 2,097	$ 3,371
Long-term debt, carrying amount						$ 5,214						5,214		$ 6,932
Gain on early extinguishment of debt						$ 0			$ 0			$ (47)	$ (2)
5.625% senior notes due 2027
Subsequent Event [Line Items]
Stated interest rate						5.625%						5.625%
Senior notes | 5.625% senior notes due 2027
Subsequent Event [Line Items]
Long-term debt, carrying amount						$ 192						$ 192
Subsequent event
Subsequent Event [Line Items]
Quarterly base dividend declared (usd per share)		$ 1.10
Dividends declared (usd per share)	$ 4.61
Subsequent event | 2022 Stock repurchase program
Subsequent Event [Line Items]
Stock repurchased during period (in shares)			138,889
Stock repurchased during period (in US dollars)			$ 32
Subsequent event | Senior notes | 5.625% senior notes due 2027
Subsequent Event [Line Items]
Repayments of debt			189
Gain on early extinguishment of debt			$ 9
Subsequent event | Convertible debt
Subsequent Event [Line Items]
Repayments of debt				$ 11
Repayment of long term debt and payment of early conversion premium				26
Repayments of debt, exercised by shareholders				23
Capped Call proceeds				$ 14