Debt (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Schedule of Debt

Our debt consists of the following:

At December 31,	2019		2018
Commercial paper	$	699	$	674
2.30% Senior Notes due 2019	—		601
5.625% Senior Notes due 2019	—		221
2.750% Senior Notes due 2019	—		90
4.30% Senior Notes due 2021	300		300
4.50% Senior Notes due 2021	499		498
3.875% Senior Notes due 2021	597		596
2.250% Senior Notes due 2022	49		49
3.375% Senior Notes due 2022	698		697
3.125% Senior Notes due 2022	194		194
2.50% Senior Notes due 2023	398		397
3.25% Senior Notes due 2023	181		181
2.90% Senior Notes due 2023	396		396
4.25% Senior Notes due 2023	1,242		1,240
7.875% Debentures due 2023	187		187
7.125% Senior Notes due 2023	46		46
3.875% Senior Notes due 2024	489		489
3.70% Senior Notes due 2024	598		597
3.50% Senior Notes due 2025	592		590
4.00% Senior Notes due 2026	789		787
3.45% Senior Notes due 2026	123		123
2.90% Senior Notes due 2027	688		686
3.375% Senior Notes due 2028	494		493
3.70% Senior Notes due 2028	491		490
4.20% Senior Notes due 2029	493		—
7.875% Senior Debentures due 2030	831		832
5.50% Senior Debentures due 2033	426		426
4.85% Senior Debentures due 2034	87		86
6.875% Senior Debentures due 2036	1,068		1,068
6.75% Senior Debentures due 2037	75		75
5.90% Senior Notes due 2040	297		297
4.50% Senior Debentures due 2042	45		45
4.85% Senior Notes due 2042	486		486
4.375% Senior Debentures due 2043	1,109		1,103
4.875% Senior Debentures due 2043	18		18
5.850% Senior Debentures due 2043	1,231		1,230
5.25% Senior Debentures due 2044	345		345
4.90% Senior Notes due 2044	539		539
4.60% Senior Notes due 2045	589		588
5.875% Junior Subordinated Debentures due 2057	643		642
6.25% Junior Subordinated Debentures due 2057	643		642
Obligations under finance leases	44		69
Total debt (a)	18,719		19,113
Less commercial paper	699		674
Less current portion	18		339
Total long-term debt, net of current portion	$	18,002	$	18,100

(a) At December 31, 2019 and 2018, the senior and junior subordinated debt balances included (i) a net unamortized discount of $412 million and $422 million, respectively, (ii) unamortized deferred financing costs of $92 million and $98 million, respectively, and (iii) a decrease in the carrying value of the debt relating to previously settled fair value hedges of $6 million and $5 million, respectively. The face value of our total debt was $19.23 billion at December 31, 2019 and $19.64 billion at December 31, 2018.

Scheduled Maturities of Long-term Debt at Face Value

At December 31, 2019, our scheduled maturities of long-term debt at face value, excluding finance leases, and the related interest payments were as follows:

																2025 and
	2020			2021			2022			2023			2024			Thereafter
Long-term debt		$	—		$	1,400		$	945		$	2,465		$	1,092	$	12,584