Debt (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Long-term Debt Obligations

Our total long-term debt obligations are as follows (in millions):

	Maturities (1)	Stated Interest Rates	Effective Interest Rates	December 31, 2019		December 31, 2020
2012 Notes issuance of $3.0 billion	2022	2.50%	2.66%	1,250		1,250
2014 Notes issuance of $6.0 billion	2021 - 2044	3.30% - 4.95%	3.43% - 5.11%	5,000		5,000
2017 Notes issuance of $17.0 billion	2023 - 2057	2.40% - 5.20%	2.56% - 4.33%	17,000		16,000
2020 Notes issuance of $10.0 billion	2023 - 2060	0.40% - 2.70%	0.56% - 2.77%	—		10,000
Credit Facility				740		338
Other long-term debt				830		586
Total face value of long-term debt				24,820		33,174
Unamortized discount and issuance costs, net				(101)		(203)
Less current portion of long-term debt				(1,305)		(1,155)
Long-term debt				$	23,414	$	31,816

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(1)The weighted average remaining lives of the 2012, 2014, 2017, and 2020 Notes were 1.9, 11.8, 16.2, and 18.7 years as of December 31, 2020. The combined weighted average remaining life of the Notes was 15.8 years as of December 31, 2020.

Future Principal Payments for Debt

As of December 31, 2020, future principal payments for our total long-term debt were as follows (in millions):

Year Ended December 31,
2021	$	1,156
2022	1,629
2023	2,283
2024	3,355
2025	2,251
Thereafter	22,500
	$	33,174